From fdcc7690758d8f284e631e88ec696d0437032009 Mon Sep 17 00:00:00 2001
From: JCGuerrero <JCystems@gMail.com>
Date: Sat, 4 Oct 2025 17:24:41 -0500
Subject: [PATCH 1/8] b

---
 __tests__/Date/wtf.unit.spec.js | 277 +++++++++++++++++++-------------
 1 file changed, 161 insertions(+), 116 deletions(-)

diff --git a/__tests__/Date/wtf.unit.spec.js b/__tests__/Date/wtf.unit.spec.js
index 0d7625b..ae542e3 100644
--- a/__tests__/Date/wtf.unit.spec.js
+++ b/__tests__/Date/wtf.unit.spec.js
@@ -2,17 +2,18 @@
 describe('Date', () => {
   'use strict'
 
-  let oDate, dateString, dateValue, milliseconds
+  let oDate, dateISOString, dateTimeString, dateValue, milliseconds
 
   // 1 of 28
   describe('new Date("0")', () => {
     beforeEach(() => {
       oDate = new Date('0')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
+      dateTimeString = oDate.toTimeString()
     })
 
     it('does NOT equal "1970-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('1970-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('1970-01-01T00:00:00.000Z')
     })
 
     it('interprets "0" as the year 2000, not as a timestamp! parsing it as "2000-01-01T06:00:00.000"', () => {
@@ -27,17 +28,17 @@ describe('Date', () => {
   describe('new Date(0)', () => {
     beforeEach(() => {
       oDate = new Date(0)
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "2000-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2000-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2000-01-01T00:00:00.000Z')
     })
 
     it('is interpreted as 0 milliseconds since the Unix epoch (Jan 1, 1970).', () => {
       // The number 0, as opposed to the string "0",
       // is interpreted as milliseconds since the Unix epoch (Jan 1, 1970).
-      expect(dateString).toEqual('1970-01-01T00:00:00.000Z')
+      expect(dateISOString).toEqual('1970-01-01T00:00:00.000Z')
     })
   })
 
@@ -116,20 +117,20 @@ describe('Date', () => {
     // 7 of 28
     describe('.toTimeString()', () => {
       beforeEach(() => {
-        dateString = oDate.toTimeString()
+        dateTimeString = oDate.toTimeString()
       })
 
       it('does NOT equal ""', () => {
-        expect(dateString).not.toEqual('')
+        expect(dateTimeString).not.toEqual('')
       })
 
       it('is NOT null', () => {
-        expect(dateString).not.toBe(null)
+        expect(dateTimeString).not.toBe(null)
       })
 
       it('returns the string "Invalid Date" for invalid dates. 🫠', () => {
         // toTimeString() returns the string "Invalid Date" for invalid dates. 🫠
-        expect(dateString).toEqual('Invalid Date')
+        expect(dateTimeString).toEqual('Invalid Date')
       })
     })
   })
@@ -138,15 +139,15 @@ describe('Date', () => {
   describe('new Date("1")', () => {
     beforeEach(() => {
       oDate = new Date('1')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "1970-01-01T00:00:00.001Z"', () => {
-      expect(dateString).not.toEqual('1970-01-01T00:00:00.001Z')
+      expect(dateISOString).not.toEqual('1970-01-01T00:00:00.001Z')
     })
 
     it('does NOT equal "0001-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('0001-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('0001-01-01T00:00:00.000Z')
     })
 
     it('equals to "2001-01-01T00:00:00.000"', () => {
@@ -162,15 +163,15 @@ describe('Date', () => {
   describe('new Date("2")', () => {
     beforeEach(() => {
       oDate = new Date('2')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "2002-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2002-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2002-01-01T00:00:00.000Z')
     })
 
     it('does NOT equal "2001-01-02T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-01-02T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2001-01-02T00:00:00.000Z')
     })
 
     it('equals "2001-02-01T00:00:00.000"', () => {
@@ -184,15 +185,15 @@ describe('Date', () => {
   describe('new Date("12")', () => {
     beforeEach(() => {
       oDate = new Date('12')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2012-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2012-01-01T00:00:00.000Z')
     })
 
     it('does NOT equal "2001-01-12T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-01-12T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2001-01-12T00:00:00.000Z')
     })
 
     it('equals "2001-12-01T00:00:00.000"', () => {
@@ -207,7 +208,7 @@ describe('Date', () => {
   describe('new Date("13")', () => {
     beforeEach(() => {
       oDate = new Date('13')
-      dateString = oDate.toTimeString()
+      dateTimeString = oDate.toTimeString()
     })
 
     describe('.toISOString()', () => {
@@ -219,7 +220,7 @@ describe('Date', () => {
     describe('.toTimeString()', () => {
       it('equals "Invalid Date"', () => {
         // "13" would be month 13, which doesn't exist, so it's Invalid Date.
-        expect(dateString).toEqual('Invalid Date')
+        expect(dateTimeString).toEqual('Invalid Date')
       })
     })
   })
@@ -255,23 +256,29 @@ describe('Date', () => {
   describe('new Date("12.1")', () => {
     beforeEach(() => {
       oDate = new Date('12.1')
-      dateString = oDate.toISOString()
     })
 
-    it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-01-01T00:00:00.000Z')
-    })
+    describe('.toISOString()', () => {
+      beforeEach(() => {
+        // NOTE: FireFox throws here: "Invalid Date".
+        dateISOString = oDate.toISOString()
+      })
 
-    it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2012-01-01T00:00:00.000Z')
-    })
+      it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
+      })
 
-    it('equals "2001-12-01T00:00:00.000"', () => {
-      // "12.1" is interpreted as the date December 1st,
-      // and as before for dates with no year the default is 2001 because of course.
-      // expect(dateString).toEqual('2001-12-01T00:00:00.000Z')
-      const expectedDate = new Date('2001-12-01T00:00:00.000')
-      expect(oDate.getTime()).toEqual(expectedDate.getTime())
+      it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2012-01-01T00:00:00.000Z')
+      })
+
+      it('equals "2001-12-01T00:00:00.000"', () => {
+        // "12.1" is interpreted as the date December 1st,
+        // and as before for dates with no year the default is 2001 because of course.
+        // expect(dateString).toEqual('2001-12-01T00:00:00.000Z')
+        const expectedDate = new Date('2001-12-01T00:00:00.000')
+        expect(oDate.getTime()).toEqual(expectedDate.getTime())
+      })
     })
   })
 
@@ -279,12 +286,12 @@ describe('Date', () => {
   describe('new Date("12.0")', () => {
     beforeEach(() => {
       oDate = new Date('12.0')
-      dateString = oDate.toTimeString()
+      dateTimeString = oDate.toTimeString()
     })
 
     describe('.toTimeString()', () => {
       it('equals "Invalid Date"', () => {
-        expect(dateString).toEqual('Invalid Date')
+        expect(dateTimeString).toEqual('Invalid Date')
       })
     })
 
@@ -299,22 +306,28 @@ describe('Date', () => {
   describe('new Date("12.-1")', () => {
     beforeEach(() => {
       oDate = new Date('12.-1')
-      dateString = oDate.toISOString()
     })
 
-    it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2012-01-01T00:00:00.000Z')
-    })
+    describe('.toISOString()', () => {
+      beforeEach(() => {
+        // NOTE: FireFox throws here "Invalid Date".
+        dateISOString = oDate.toISOString()
+      })
 
-    it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-01-01T00:00:00.000Z')
-    })
+      it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2012-01-01T00:00:00.000Z')
+      })
 
-    it('ignores the "-", interpreting it like "12.1", resulting in "2001-12-01T00:00:00.000"', () => {
-      // The dash here is ignored, so this is interpreted the same as "12.1".
-      // expect(dateString).toEqual('2001-12-01T00:00:00.000Z')
-      const expectedDate = new Date('2001-12-01T00:00:00.000')
-      expect(oDate.getTime()).toEqual(expectedDate.getTime())
+      it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
+      })
+
+      it('ignores the "-", interpreting it like "12.1", resulting in "2001-12-01T00:00:00.000"', () => {
+        // The dash here is ignored, so this is interpreted the same as "12.1".
+        // expect(dateString).toEqual('2001-12-01T00:00:00.000Z')
+        const expectedDate = new Date('2001-12-01T00:00:00.000')
+        expect(oDate.getTime()).toEqual(expectedDate.getTime())
+      })
     })
   })
 
@@ -322,11 +335,11 @@ describe('Date', () => {
   describe('new Date("perhaps 1")', () => {
     beforeEach(() => {
       oDate = new Date('perhaps 1')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "1970-01-01T00:00:01.000Z"', () => {
-      expect(dateString).not.toEqual('1970-01-01T00:00:01.000Z')
+      expect(dateISOString).not.toEqual('1970-01-01T00:00:01.000Z')
     })
 
     it('ignores leading text. Finding "1" and parsing it as January. Resulting in "2001-01-01T00:00:00.000"', () => {
@@ -345,12 +358,12 @@ describe('Date', () => {
       // It needs a number to parse, so this is Invalid Date.
       // It's equivalent to new Date("").
       oDate = new Date('perhaps')
-      dateString = oDate.toTimeString()
+      dateTimeString = oDate.toTimeString()
     })
 
     describe('.toTimeString()', () => {
       it('equals "Invalid Date"', () => {
-        expect(dateString).toEqual('Invalid Date')
+        expect(dateTimeString).toEqual('Invalid Date')
       })
     })
 
@@ -368,22 +381,28 @@ describe('Date', () => {
       // And for some reason this expression cares about your local timezone,
       // which happens to be BST for me right now.
       oDate = new Date('maybe 1')
-      dateString = oDate.toISOString()
     })
 
-    // WARNING: The quiz says this is the correct answer!
-    it('does NOT equal "2001-04-30T23:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-04-30T23:00:00.000Z')
-    })
+    describe('.toISOString()', () => {
+      beforeEach(() => {
+        // NOTE: FireFox throws here: "Invalid Date".
+        dateISOString = oDate.toISOString()
+      })
 
-    it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-01-01T00:00:00.000Z')
-    })
+      // WARNING: The quiz says this is the correct answer!
+      it('does NOT equal "2001-04-30T23:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2001-04-30T23:00:00.000Z')
+      })
 
-    it('parses "maybe" as "may"! resulting in "2001-05-01T00:00:00.000"', () => {
-      // expect(dateString).toEqual('2001-05-01T00:00:00.000Z')
-      const expectedDate = new Date('2001-05-01T00:00:00.000')
-      expect(oDate.getTime()).toEqual(expectedDate.getTime())
+      it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
+      })
+
+      it('parses "maybe" as "may"! resulting in "2001-05-01T00:00:00.000"', () => {
+        // expect(dateString).toEqual('2001-05-01T00:00:00.000Z')
+        const expectedDate = new Date('2001-05-01T00:00:00.000')
+        expect(oDate.getTime()).toEqual(expectedDate.getTime())
+      })
     })
   })
 
@@ -394,22 +413,28 @@ describe('Date', () => {
       // this is just parsing "may 2010"
       // and again local timezone is important.
       oDate = new Date('fourth of may 2010')
-      dateString = oDate.toISOString()
     })
 
-    // Works only in non-UTC timezones.
-    xit('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2010-05-01T00:00:00.000Z')
-    })
+    describe('.toISOString()', () => {
+      beforeEach(() => {
+        // NOTE: FireFox throws here: "Invalid Date".
+        dateISOString = oDate.toISOString()
+      })
 
-    it('does NOT equal "2010-05-04T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2010-05-04T00:00:00.000Z')
-    })
+      it('does NOT equal "2010-05-01T00:00:00.000"', () => {
+        const expectedDate = new Date('2010-05-01T00:00:00.000')
+        expect(oDate.getTime()).not.toEqual(expectedDate.getTime())
+      })
 
-    it('ignores "fourth of", parsing "may 2010" as "2010-05-01T00:00:00.000"', () => {
-      // expect(dateString).toEqual('2010-05-01T00:00:00.000Z')
-      const expectedDate = new Date('2010-05-01T00:00:00.000')
-      expect(oDate.getTime()).toEqual(expectedDate.getTime())
+      it('does NOT equal "2010-05-04T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2010-05-04T00:00:00.000Z')
+      })
+
+      it('ignores "fourth of", parsing "may 2010" as "2010-05-01T00:00:00.000"', () => {
+        // expect(dateString).toEqual('2010-05-01T00:00:00.000Z')
+        const expectedDate = new Date('2010-05-01T00:00:00.000')
+        expect(oDate.getTime()).toEqual(expectedDate.getTime())
+      })
     })
   })
 
@@ -418,19 +443,26 @@ describe('Date', () => {
     beforeEach(() => {
       // UTC is correctly parsed as a timezone.
       oDate = new Date('May 4 UTC')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
-    it('does NOT equal "2010-04-30T23:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2010-04-30T23:00:00.000Z')
-    })
+    describe('.toISOString()', () => {
+      beforeEach(() => {
+        // NOTE: FireFox throws here: "Invalid Date".
+        dateISOString = oDate.toISOString()
+      })
 
-    it('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2010-05-01T00:00:00.000Z')
-    })
+      it('does NOT equal "2010-04-30T23:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2010-04-30T23:00:00.000Z')
+      })
+
+      it('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2010-05-01T00:00:00.000Z')
+      })
 
-    it('parses UTC as "2001-05-04T00:00:00.000Z"', () => {
-      expect(dateString).toEqual('2001-05-04T00:00:00.000Z')
+      it('parses UTC as "2001-05-04T00:00:00.000Z"', () => {
+        expect(dateISOString).toEqual('2001-05-04T00:00:00.000Z')
+      })
     })
   })
 
@@ -439,20 +471,27 @@ describe('Date', () => {
     beforeEach(() => {
       // You can add modifiers to timezones and it works as you would expect.
       oDate = new Date('May 4 UTC+1')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
-    it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-05-04T00:00:00.000Z')
-    })
+    describe('.toISOString()', () => {
+      beforeEach(() => {
+        // NOTE: FireFox throws here: "Invalid Date".
+        dateISOString = oDate.toISOString()
+      })
 
-    it('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2010-05-01T00:00:00.000Z')
-    })
+      it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
+      })
+
+      it('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2010-05-01T00:00:00.000Z')
+      })
 
-    it('parses UTC+1 as "2001-05-04T00:00:00.000", resulting in "2001-05-03T23:00:00.000Z"', () => {
-      // 05-04T00 @ UTC+1 is 1 hr ahead: 05-03T23 @ UTC
-      expect(dateString).toEqual('2001-05-03T23:00:00.000Z')
+      it('parses UTC+1 as "2001-05-04T00:00:00.000", resulting in "2001-05-03T23:00:00.000Z"', () => {
+        // 05-04T00 @ UTC+1 is 1 hr ahead: 05-03T23 @ UTC
+        expect(dateISOString).toEqual('2001-05-03T23:00:00.000Z')
+      })
     })
   })
 
@@ -461,15 +500,21 @@ describe('Date', () => {
     beforeEach(() => {
       // It also supports minutes!
       oDate = new Date('May 4 UTC+1:59')
-      dateString = oDate.toISOString()
     })
 
-    it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-05-04T00:00:00.000Z')
-    })
+    describe('.toISOString()', () => {
+      beforeEach(() => {
+        // NOTE: FireFox throws here: "Invalid Date".
+        dateISOString = oDate.toISOString()
+      })
+
+      it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
+      })
 
-    it('parses UTC+1:59 as "2001-05-04T00:00:00.000", resulting in "2001-05-03T22:01:00.000Z"', () => {
-      expect(dateString).toEqual('2001-05-03T22:01:00.000Z')
+      it('parses UTC+1:59 as "2001-05-04T00:00:00.000", resulting in "2001-05-03T22:01:00.000Z"', () => {
+        expect(dateISOString).toEqual('2001-05-03T22:01:00.000Z')
+      })
     })
   })
 
@@ -480,19 +525,19 @@ describe('Date', () => {
       // 60 is being parsed as the year here,
       // UTC+1 is the timezone.
       oDate = new Date('May 4 UTC+1:60')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-05-04T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
     })
 
     it('does NOT equal "2001-05-03T22:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2001-05-03T22:00:00.000Z')
+      expect(dateISOString).not.toEqual('2001-05-03T22:00:00.000Z')
     })
 
     it('parses UTC+1:60 as "UTC+1" AND "year 60"!, resulting in "1960-05-03T23:00:00.000Z"', () => {
-      expect(dateString).toEqual('1960-05-03T23:00:00.000Z')
+      expect(dateISOString).toEqual('1960-05-03T23:00:00.000Z')
     })
   })
 
@@ -501,12 +546,12 @@ describe('Date', () => {
     beforeEach(() => {
       // No tricks here, just a plain ol' Invalid Date.
       oDate = new Date('1990 2010')
-      dateString = oDate.toTimeString()
+      dateTimeString = oDate.toTimeString()
     })
 
     describe('.toTimeString()', () => {
       it('equals "Invalid Date"', () => {
-        expect(dateString).toEqual('Invalid Date')
+        expect(dateTimeString).toEqual('Invalid Date')
       })
     })
 
@@ -522,15 +567,15 @@ describe('Date', () => {
     beforeEach(() => {
       // For some reason, parenthesised text is ignored.
       oDate = new Date('1990 (2010)')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "2000-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2000-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2000-01-01T00:00:00.000Z')
     })
 
     it('does NOT equal "2010-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2010-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2010-01-01T00:00:00.000Z')
     })
 
     it('ignores text in parentheses, parsing this as "1990", resulting in "1990-01-01T00:00:00.000"', () => {
@@ -545,15 +590,15 @@ describe('Date', () => {
     beforeEach(() => {
       // No matter where it is.
       oDate = new Date('(1990) 2010')
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "1990-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('1990-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('1990-01-01T00:00:00.000Z')
     })
 
     it('does NOT equal "2000-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2000-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2000-01-01T00:00:00.000Z')
     })
 
     it('ignores text in parentheses, parsing this as "2010", resulting in "2010-01-01T00:00:00.000"', () => {
@@ -569,15 +614,15 @@ describe('Date', () => {
       // -[] is coerced to 0,
       // which is interpreted as milliseconds since the Unix epoch (Jan 1, 1970).
       oDate = new Date(-[])
-      dateString = oDate.toISOString()
+      dateISOString = oDate.toISOString()
     })
 
     it('does NOT equal "2000-01-01T00:00:00.000Z"', () => {
-      expect(dateString).not.toEqual('2000-01-01T00:00:00.000Z')
+      expect(dateISOString).not.toEqual('2000-01-01T00:00:00.000Z')
     })
 
     it('coerces -[] as 0, parsing it to "1970-01-01T00:00:00.000Z"', () => {
-      expect(dateString).toEqual('1970-01-01T00:00:00.000Z')
+      expect(dateISOString).toEqual('1970-01-01T00:00:00.000Z')
     })
   })
 })

From 81c427440d0a8e4eed8b9fe8134397a47e7f55e7 Mon Sep 17 00:00:00 2001
From: JCGuerrero <JCystems@gMail.com>
Date: Sat, 4 Oct 2025 17:26:14 -0500
Subject: [PATCH 2/8] f

---
 __tests__/Date/wtf.unit.spec.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/__tests__/Date/wtf.unit.spec.js b/__tests__/Date/wtf.unit.spec.js
index ae542e3..0ebe231 100644
--- a/__tests__/Date/wtf.unit.spec.js
+++ b/__tests__/Date/wtf.unit.spec.js
@@ -421,7 +421,8 @@ describe('Date', () => {
         dateISOString = oDate.toISOString()
       })
 
-      it('does NOT equal "2010-05-01T00:00:00.000"', () => {
+      // Only works in Non-UTC
+      xit('does NOT equal "2010-05-01T00:00:00.000"', () => {
         const expectedDate = new Date('2010-05-01T00:00:00.000')
         expect(oDate.getTime()).not.toEqual(expectedDate.getTime())
       })

From a642bf05828386ef7439ed7c73dd6db191a27a70 Mon Sep 17 00:00:00 2001
From: JCGuerrero <JCystems@gMail.com>
Date: Sat, 4 Oct 2025 17:41:33 -0500
Subject: [PATCH 3/8] fff

---
 __tests__/Date/wtf.unit.spec.js | 34 +++++++++++++++++++--------------
 __tests__/global.js             | 15 +++++++++++++++
 package.json                    |  4 +++-
 src/browser-detect.js           |  4 ++++
 testem.yml                      |  1 +
 5 files changed, 43 insertions(+), 15 deletions(-)
 create mode 100644 src/browser-detect.js

diff --git a/__tests__/Date/wtf.unit.spec.js b/__tests__/Date/wtf.unit.spec.js
index 0ebe231..bf202c1 100644
--- a/__tests__/Date/wtf.unit.spec.js
+++ b/__tests__/Date/wtf.unit.spec.js
@@ -1,3 +1,7 @@
+/**
+ * @jest-environment jsdom
+ */
+
 // SRC: https://jsdate.wtf/
 describe('Date', () => {
   'use strict'
@@ -447,24 +451,26 @@ describe('Date', () => {
       dateISOString = oDate.toISOString()
     })
 
-    describe('.toISOString()', () => {
-      beforeEach(() => {
-        // NOTE: FireFox throws here: "Invalid Date".
-        dateISOString = oDate.toISOString()
-      })
+    if (!isFireFox()) {
+      describe('.toISOString()', () => {
+        beforeEach(() => {
+          // NOTE: FireFox throws here: "Invalid Date".
+          dateISOString = oDate.toISOString()
+        })
 
-      it('does NOT equal "2010-04-30T23:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2010-04-30T23:00:00.000Z')
-      })
+        it('does NOT equal "2010-04-30T23:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2010-04-30T23:00:00.000Z')
+        })
 
-      it('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2010-05-01T00:00:00.000Z')
-      })
+        it('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2010-05-01T00:00:00.000Z')
+        })
 
-      it('parses UTC as "2001-05-04T00:00:00.000Z"', () => {
-        expect(dateISOString).toEqual('2001-05-04T00:00:00.000Z')
+        it('parses UTC as "2001-05-04T00:00:00.000Z"', () => {
+          expect(dateISOString).toEqual('2001-05-04T00:00:00.000Z')
+        })
       })
-    })
+    }
   })
 
   // 22 of 28
diff --git a/__tests__/global.js b/__tests__/global.js
index 8b71eda..48b6bd2 100644
--- a/__tests__/global.js
+++ b/__tests__/global.js
@@ -1 +1,16 @@
+function isFireFox () {
+  if (!navigator) {
+    return false
+  }
+
+  const userAgent = navigator
+    .userAgent
+    .toLowerCase()
+
+  return userAgent.indexOf('firefox') > -1
+}
+
 global._ = require('lodash')
+
+// A simple function to detect Firefox from the user agent
+global.isFireFox = isFireFox
diff --git a/package.json b/package.json
index 77759e6..c0ada70 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,9 @@
       "jest"
     ],
     "globals": [
-      "_"
+      "navigator",
+      "_",
+      "isFireFox"
     ]
   },
   "repository": {
diff --git a/src/browser-detect.js b/src/browser-detect.js
new file mode 100644
index 0000000..09bac28
--- /dev/null
+++ b/src/browser-detect.js
@@ -0,0 +1,4 @@
+// A simple function to detect Firefox from the user agent
+function isFireFox () {
+  return navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
+}
diff --git a/testem.yml b/testem.yml
index 0275018..d92bac4 100644
--- a/testem.yml
+++ b/testem.yml
@@ -3,6 +3,7 @@ parallel: 4
 ignore_missing_launchers: true
 src_files: [
   'node_modules/lodash/lodash.min.js',
+  'src/browser-detect.js',
   '__tests__/**/*.unit.spec*.js'
 ]
 

From 91d86236e095130084e619e4a475539c31a1a1e5 Mon Sep 17 00:00:00 2001
From: JCGuerrero <JCystems@gMail.com>
Date: Sat, 4 Oct 2025 19:20:35 -0500
Subject: [PATCH 4/8] f

---
 __tests__/Date/wtf.unit.spec.js | 271 ++++++++++++++++++++------------
 1 file changed, 169 insertions(+), 102 deletions(-)

diff --git a/__tests__/Date/wtf.unit.spec.js b/__tests__/Date/wtf.unit.spec.js
index bf202c1..008bd12 100644
--- a/__tests__/Date/wtf.unit.spec.js
+++ b/__tests__/Date/wtf.unit.spec.js
@@ -262,28 +262,36 @@ describe('Date', () => {
       oDate = new Date('12.1')
     })
 
-    describe('.toISOString()', () => {
-      beforeEach(() => {
-        // NOTE: FireFox throws here: "Invalid Date".
-        dateISOString = oDate.toISOString()
+    if (isFireFox()) {
+      describe('.toISOString()', () => {
+        it('throws', () => {
+          expect(() => oDate.toISOString()).toThrow()
+        })
       })
+    } else {
+      describe('.toISOString()', () => {
+        beforeEach(() => {
+          // NOTE: FireFox throws here: "Invalid Date".
+          dateISOString = oDate.toISOString()
+        })
 
-      it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
-      })
+        it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
+        })
 
-      it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2012-01-01T00:00:00.000Z')
-      })
+        it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2012-01-01T00:00:00.000Z')
+        })
 
-      it('equals "2001-12-01T00:00:00.000"', () => {
-        // "12.1" is interpreted as the date December 1st,
-        // and as before for dates with no year the default is 2001 because of course.
-        // expect(dateString).toEqual('2001-12-01T00:00:00.000Z')
-        const expectedDate = new Date('2001-12-01T00:00:00.000')
-        expect(oDate.getTime()).toEqual(expectedDate.getTime())
+        it('equals "2001-12-01T00:00:00.000"', () => {
+          // "12.1" is interpreted as the date December 1st,
+          // and as before for dates with no year the default is 2001 because of course.
+          // expect(dateString).toEqual('2001-12-01T00:00:00.000Z')
+          const expectedDate = new Date('2001-12-01T00:00:00.000')
+          expect(oDate.getTime()).toEqual(expectedDate.getTime())
+        })
       })
-    })
+    }
   })
 
   // 15 of 28
@@ -312,27 +320,35 @@ describe('Date', () => {
       oDate = new Date('12.-1')
     })
 
-    describe('.toISOString()', () => {
-      beforeEach(() => {
-        // NOTE: FireFox throws here "Invalid Date".
-        dateISOString = oDate.toISOString()
+    if (isFireFox()) {
+      describe('.toISOString()', () => {
+        it('throws', () => {
+          expect(() => oDate.toISOString()).toThrow()
+        })
       })
+    } else {
+      describe('.toISOString()', () => {
+        beforeEach(() => {
+          // NOTE: FireFox throws here "Invalid Date".
+          dateISOString = oDate.toISOString()
+        })
 
-      it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2012-01-01T00:00:00.000Z')
-      })
+        it('does NOT equal "2012-01-01T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2012-01-01T00:00:00.000Z')
+        })
 
-      it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
-      })
+        it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
+        })
 
-      it('ignores the "-", interpreting it like "12.1", resulting in "2001-12-01T00:00:00.000"', () => {
-        // The dash here is ignored, so this is interpreted the same as "12.1".
-        // expect(dateString).toEqual('2001-12-01T00:00:00.000Z')
-        const expectedDate = new Date('2001-12-01T00:00:00.000')
-        expect(oDate.getTime()).toEqual(expectedDate.getTime())
+        it('ignores the "-", interpreting it like "12.1", resulting in "2001-12-01T00:00:00.000"', () => {
+          // The dash here is ignored, so this is interpreted the same as "12.1".
+          // expect(dateString).toEqual('2001-12-01T00:00:00.000Z')
+          const expectedDate = new Date('2001-12-01T00:00:00.000')
+          expect(oDate.getTime()).toEqual(expectedDate.getTime())
+        })
       })
-    })
+    }
   })
 
   // 17 of 28
@@ -387,27 +403,35 @@ describe('Date', () => {
       oDate = new Date('maybe 1')
     })
 
-    describe('.toISOString()', () => {
-      beforeEach(() => {
-        // NOTE: FireFox throws here: "Invalid Date".
-        dateISOString = oDate.toISOString()
+    if (isFireFox()) {
+      describe('.toISOString()', () => {
+        it('throws', () => {
+          expect(() => oDate.toISOString()).toThrow()
+        })
       })
+    } else {
+      describe('.toISOString()', () => {
+        beforeEach(() => {
+          // NOTE: FireFox throws here: "Invalid Date".
+          dateISOString = oDate.toISOString()
+        })
 
-      // WARNING: The quiz says this is the correct answer!
-      it('does NOT equal "2001-04-30T23:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2001-04-30T23:00:00.000Z')
-      })
+        // WARNING: The quiz says this is the correct answer!
+        it('does NOT equal "2001-04-30T23:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2001-04-30T23:00:00.000Z')
+        })
 
-      it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
-      })
+        it('does NOT equal "2001-01-01T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2001-01-01T00:00:00.000Z')
+        })
 
-      it('parses "maybe" as "may"! resulting in "2001-05-01T00:00:00.000"', () => {
-        // expect(dateString).toEqual('2001-05-01T00:00:00.000Z')
-        const expectedDate = new Date('2001-05-01T00:00:00.000')
-        expect(oDate.getTime()).toEqual(expectedDate.getTime())
+        it('parses "maybe" as "may"! resulting in "2001-05-01T00:00:00.000"', () => {
+          // expect(dateString).toEqual('2001-05-01T00:00:00.000Z')
+          const expectedDate = new Date('2001-05-01T00:00:00.000')
+          expect(oDate.getTime()).toEqual(expectedDate.getTime())
+        })
       })
-    })
+    }
   })
 
   // 20 of 28
@@ -419,28 +443,36 @@ describe('Date', () => {
       oDate = new Date('fourth of may 2010')
     })
 
-    describe('.toISOString()', () => {
-      beforeEach(() => {
-        // NOTE: FireFox throws here: "Invalid Date".
-        dateISOString = oDate.toISOString()
+    if (isFireFox()) {
+      describe('.toISOString()', () => {
+        it('throws', () => {
+          expect(() => oDate.toISOString()).toThrow()
+        })
       })
+    } else {
+      describe('.toISOString()', () => {
+        beforeEach(() => {
+          // NOTE: FireFox throws here: "Invalid Date".
+          dateISOString = oDate.toISOString()
+        })
 
-      // Only works in Non-UTC
-      xit('does NOT equal "2010-05-01T00:00:00.000"', () => {
-        const expectedDate = new Date('2010-05-01T00:00:00.000')
-        expect(oDate.getTime()).not.toEqual(expectedDate.getTime())
-      })
+        // Only works in Non-UTC
+        xit('does NOT equal "2010-05-01T00:00:00.000"', () => {
+          const expectedDate = new Date('2010-05-01T00:00:00.000')
+          expect(oDate.getTime()).not.toEqual(expectedDate.getTime())
+        })
 
-      it('does NOT equal "2010-05-04T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2010-05-04T00:00:00.000Z')
-      })
+        it('does NOT equal "2010-05-04T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2010-05-04T00:00:00.000Z')
+        })
 
-      it('ignores "fourth of", parsing "may 2010" as "2010-05-01T00:00:00.000"', () => {
-        // expect(dateString).toEqual('2010-05-01T00:00:00.000Z')
-        const expectedDate = new Date('2010-05-01T00:00:00.000')
-        expect(oDate.getTime()).toEqual(expectedDate.getTime())
+        it('ignores "fourth of", parsing "may 2010" as "2010-05-01T00:00:00.000"', () => {
+          // expect(dateString).toEqual('2010-05-01T00:00:00.000Z')
+          const expectedDate = new Date('2010-05-01T00:00:00.000')
+          expect(oDate.getTime()).toEqual(expectedDate.getTime())
+        })
       })
-    })
+    }
   })
 
   // 21 of 28
@@ -451,7 +483,13 @@ describe('Date', () => {
       dateISOString = oDate.toISOString()
     })
 
-    if (!isFireFox()) {
+    if (isFireFox()) {
+      describe('.toISOString()', () => {
+        it('throws', () => {
+          expect(() => oDate.toISOString()).toThrow()
+        })
+      })
+    } else {
       describe('.toISOString()', () => {
         beforeEach(() => {
           // NOTE: FireFox throws here: "Invalid Date".
@@ -478,28 +516,35 @@ describe('Date', () => {
     beforeEach(() => {
       // You can add modifiers to timezones and it works as you would expect.
       oDate = new Date('May 4 UTC+1')
-      dateISOString = oDate.toISOString()
     })
 
-    describe('.toISOString()', () => {
-      beforeEach(() => {
-        // NOTE: FireFox throws here: "Invalid Date".
-        dateISOString = oDate.toISOString()
+    if (isFireFox()) {
+      describe('.toISOString()', () => {
+        it('throws', () => {
+          expect(() => oDate.toISOString()).toThrow()
+        })
       })
+    } else {
+      describe('.toISOString()', () => {
+        beforeEach(() => {
+          // NOTE: FireFox throws here: "Invalid Date".
+          dateISOString = oDate.toISOString()
+        })
 
-      it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
-      })
+        it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
+        })
 
-      it('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2010-05-01T00:00:00.000Z')
-      })
+        it('does NOT equal "2010-05-01T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2010-05-01T00:00:00.000Z')
+        })
 
-      it('parses UTC+1 as "2001-05-04T00:00:00.000", resulting in "2001-05-03T23:00:00.000Z"', () => {
-        // 05-04T00 @ UTC+1 is 1 hr ahead: 05-03T23 @ UTC
-        expect(dateISOString).toEqual('2001-05-03T23:00:00.000Z')
+        it('parses UTC+1 as "2001-05-04T00:00:00.000", resulting in "2001-05-03T23:00:00.000Z"', () => {
+          // 05-04T00 @ UTC+1 is 1 hr ahead: 05-03T23 @ UTC
+          expect(dateISOString).toEqual('2001-05-03T23:00:00.000Z')
+        })
       })
-    })
+    }
   })
 
   // 23 of 28
@@ -509,20 +554,28 @@ describe('Date', () => {
       oDate = new Date('May 4 UTC+1:59')
     })
 
-    describe('.toISOString()', () => {
-      beforeEach(() => {
-        // NOTE: FireFox throws here: "Invalid Date".
-        dateISOString = oDate.toISOString()
+    if (isFireFox()) {
+      describe('.toISOString()', () => {
+        it('throws', () => {
+          expect(() => oDate.toISOString()).toThrow()
+        })
       })
+    } else {
+      describe('.toISOString()', () => {
+        beforeEach(() => {
+          // NOTE: FireFox throws here: "Invalid Date".
+          dateISOString = oDate.toISOString()
+        })
 
-      it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
-        expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
-      })
+        it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
+        })
 
-      it('parses UTC+1:59 as "2001-05-04T00:00:00.000", resulting in "2001-05-03T22:01:00.000Z"', () => {
-        expect(dateISOString).toEqual('2001-05-03T22:01:00.000Z')
+        it('parses UTC+1:59 as "2001-05-04T00:00:00.000", resulting in "2001-05-03T22:01:00.000Z"', () => {
+          expect(dateISOString).toEqual('2001-05-03T22:01:00.000Z')
+        })
       })
-    })
+    }
   })
 
   // 24 of 28
@@ -532,20 +585,34 @@ describe('Date', () => {
       // 60 is being parsed as the year here,
       // UTC+1 is the timezone.
       oDate = new Date('May 4 UTC+1:60')
-      dateISOString = oDate.toISOString()
     })
 
-    it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
-      expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
-    })
+    if (isFireFox()) {
+      describe('.toISOString()', () => {
+        it('throws', () => {
+          expect(() => oDate.toISOString()).toThrow()
+        })
+      })
+    } else {
+      describe('.toISOString()', () => {
+        beforeEach(() => {
+          // NOTE: FireFox throws here: "Invalid Date".
+          dateISOString = oDate.toISOString()
+        })
 
-    it('does NOT equal "2001-05-03T22:00:00.000Z"', () => {
-      expect(dateISOString).not.toEqual('2001-05-03T22:00:00.000Z')
-    })
+        it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
+        })
 
-    it('parses UTC+1:60 as "UTC+1" AND "year 60"!, resulting in "1960-05-03T23:00:00.000Z"', () => {
-      expect(dateISOString).toEqual('1960-05-03T23:00:00.000Z')
-    })
+        it('does NOT equal "2001-05-03T22:00:00.000Z"', () => {
+          expect(dateISOString).not.toEqual('2001-05-03T22:00:00.000Z')
+        })
+
+        it('parses UTC+1:60 as "UTC+1" AND "year 60"!, resulting in "1960-05-03T23:00:00.000Z"', () => {
+          expect(dateISOString).toEqual('1960-05-03T23:00:00.000Z')
+        })
+      })
+    }
   })
 
   // 25 of 28

From 5bea5dfbbe18e8ede0cc317a55377006ad94dc0c Mon Sep 17 00:00:00 2001
From: JCGuerrero <JCystems@gMail.com>
Date: Sat, 4 Oct 2025 19:21:37 -0500
Subject: [PATCH 5/8] f

---
 __tests__/Date/wtf.unit.spec.js | 35 ++++++++++++---------------------
 1 file changed, 13 insertions(+), 22 deletions(-)

diff --git a/__tests__/Date/wtf.unit.spec.js b/__tests__/Date/wtf.unit.spec.js
index 008bd12..6729aad 100644
--- a/__tests__/Date/wtf.unit.spec.js
+++ b/__tests__/Date/wtf.unit.spec.js
@@ -480,7 +480,6 @@ describe('Date', () => {
     beforeEach(() => {
       // UTC is correctly parsed as a timezone.
       oDate = new Date('May 4 UTC')
-      dateISOString = oDate.toISOString()
     })
 
     if (isFireFox()) {
@@ -587,32 +586,24 @@ describe('Date', () => {
       oDate = new Date('May 4 UTC+1:60')
     })
 
-    if (isFireFox()) {
-      describe('.toISOString()', () => {
-        it('throws', () => {
-          expect(() => oDate.toISOString()).toThrow()
-        })
+    describe('.toISOString()', () => {
+      beforeEach(() => {
+        // NOTE: FireFox throws here: "Invalid Date".
+        dateISOString = oDate.toISOString()
       })
-    } else {
-      describe('.toISOString()', () => {
-        beforeEach(() => {
-          // NOTE: FireFox throws here: "Invalid Date".
-          dateISOString = oDate.toISOString()
-        })
 
-        it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
-          expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
-        })
+      it('does NOT equal "2001-05-04T00:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2001-05-04T00:00:00.000Z')
+      })
 
-        it('does NOT equal "2001-05-03T22:00:00.000Z"', () => {
-          expect(dateISOString).not.toEqual('2001-05-03T22:00:00.000Z')
-        })
+      it('does NOT equal "2001-05-03T22:00:00.000Z"', () => {
+        expect(dateISOString).not.toEqual('2001-05-03T22:00:00.000Z')
+      })
 
-        it('parses UTC+1:60 as "UTC+1" AND "year 60"!, resulting in "1960-05-03T23:00:00.000Z"', () => {
-          expect(dateISOString).toEqual('1960-05-03T23:00:00.000Z')
-        })
+      it('parses UTC+1:60 as "UTC+1" AND "year 60"!, resulting in "1960-05-03T23:00:00.000Z"', () => {
+        expect(dateISOString).toEqual('1960-05-03T23:00:00.000Z')
       })
-    }
+    })
   })
 
   // 25 of 28

From 57ffb28f028524464bcd28a5dfb816cea629715a Mon Sep 17 00:00:00 2001
From: JCGuerrero <JCystems@gMail.com>
Date: Sat, 4 Oct 2025 19:25:21 -0500
Subject: [PATCH 6/8] f

---
 __tests__/Date/wtf.unit.spec.js | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/__tests__/Date/wtf.unit.spec.js b/__tests__/Date/wtf.unit.spec.js
index 6729aad..1a996e5 100644
--- a/__tests__/Date/wtf.unit.spec.js
+++ b/__tests__/Date/wtf.unit.spec.js
@@ -262,8 +262,8 @@ describe('Date', () => {
       oDate = new Date('12.1')
     })
 
-    if (isFireFox()) {
-      describe('.toISOString()', () => {
+    if (isFireFox()) { // v 143.0
+      describe('.toISOString() @ FireFox', () => {
         it('throws', () => {
           expect(() => oDate.toISOString()).toThrow()
         })
@@ -320,8 +320,8 @@ describe('Date', () => {
       oDate = new Date('12.-1')
     })
 
-    if (isFireFox()) {
-      describe('.toISOString()', () => {
+    if (isFireFox()) { // v 143.0
+      describe('.toISOString() @ FireFox', () => {
         it('throws', () => {
           expect(() => oDate.toISOString()).toThrow()
         })
@@ -403,8 +403,8 @@ describe('Date', () => {
       oDate = new Date('maybe 1')
     })
 
-    if (isFireFox()) {
-      describe('.toISOString()', () => {
+    if (isFireFox()) { // v 143.0
+      describe('.toISOString() @ FireFox', () => {
         it('throws', () => {
           expect(() => oDate.toISOString()).toThrow()
         })
@@ -443,8 +443,8 @@ describe('Date', () => {
       oDate = new Date('fourth of may 2010')
     })
 
-    if (isFireFox()) {
-      describe('.toISOString()', () => {
+    if (isFireFox()) { // v 143.0
+      describe('.toISOString() @ FireFox', () => {
         it('throws', () => {
           expect(() => oDate.toISOString()).toThrow()
         })
@@ -482,8 +482,8 @@ describe('Date', () => {
       oDate = new Date('May 4 UTC')
     })
 
-    if (isFireFox()) {
-      describe('.toISOString()', () => {
+    if (isFireFox()) { // v 143.0
+      describe('.toISOString() @ FireFox', () => {
         it('throws', () => {
           expect(() => oDate.toISOString()).toThrow()
         })
@@ -517,8 +517,8 @@ describe('Date', () => {
       oDate = new Date('May 4 UTC+1')
     })
 
-    if (isFireFox()) {
-      describe('.toISOString()', () => {
+    if (isFireFox()) { // v 143.0
+      describe('.toISOString() @ FireFox', () => {
         it('throws', () => {
           expect(() => oDate.toISOString()).toThrow()
         })
@@ -553,8 +553,8 @@ describe('Date', () => {
       oDate = new Date('May 4 UTC+1:59')
     })
 
-    if (isFireFox()) {
-      describe('.toISOString()', () => {
+    if (isFireFox()) { // v 143.0
+      describe('.toISOString() @ FireFox', () => {
         it('throws', () => {
           expect(() => oDate.toISOString()).toThrow()
         })

From 53151c8eab2afde9198f88afa580659dc1378abb Mon Sep 17 00:00:00 2001
From: JCGuerrero <JCystems@gMail.com>
Date: Sat, 4 Oct 2025 19:27:40 -0500
Subject: [PATCH 7/8] f

---
 __tests__/Date/wtf.unit.spec.js | 98 ++++++++++++++++++++++++++-------
 1 file changed, 77 insertions(+), 21 deletions(-)

diff --git a/__tests__/Date/wtf.unit.spec.js b/__tests__/Date/wtf.unit.spec.js
index 1a996e5..91ac5b9 100644
--- a/__tests__/Date/wtf.unit.spec.js
+++ b/__tests__/Date/wtf.unit.spec.js
@@ -263,9 +263,17 @@ describe('Date', () => {
     })
 
     if (isFireFox()) { // v 143.0
-      describe('.toISOString() @ FireFox', () => {
-        it('throws', () => {
-          expect(() => oDate.toISOString()).toThrow()
+      describe('@FireFox', () => {
+        describe('.toISOString()', () => {
+          it('throws', () => {
+            expect(() => oDate.toISOString()).toThrow()
+          })
+        })
+
+        describe('.toTimeString()', () => {
+          it('equals "Invalid Date"', () => {
+            expect(dateTimeString).toEqual('Invalid Date')
+          })
         })
       })
     } else {
@@ -321,9 +329,17 @@ describe('Date', () => {
     })
 
     if (isFireFox()) { // v 143.0
-      describe('.toISOString() @ FireFox', () => {
-        it('throws', () => {
-          expect(() => oDate.toISOString()).toThrow()
+      describe('@FireFox', () => {
+        describe('.toISOString()', () => {
+          it('throws', () => {
+            expect(() => oDate.toISOString()).toThrow()
+          })
+        })
+
+        describe('.toTimeString()', () => {
+          it('equals "Invalid Date"', () => {
+            expect(dateTimeString).toEqual('Invalid Date')
+          })
         })
       })
     } else {
@@ -404,9 +420,17 @@ describe('Date', () => {
     })
 
     if (isFireFox()) { // v 143.0
-      describe('.toISOString() @ FireFox', () => {
-        it('throws', () => {
-          expect(() => oDate.toISOString()).toThrow()
+      describe('@FireFox', () => {
+        describe('.toISOString()', () => {
+          it('throws', () => {
+            expect(() => oDate.toISOString()).toThrow()
+          })
+        })
+
+        describe('.toTimeString()', () => {
+          it('equals "Invalid Date"', () => {
+            expect(dateTimeString).toEqual('Invalid Date')
+          })
         })
       })
     } else {
@@ -444,9 +468,17 @@ describe('Date', () => {
     })
 
     if (isFireFox()) { // v 143.0
-      describe('.toISOString() @ FireFox', () => {
-        it('throws', () => {
-          expect(() => oDate.toISOString()).toThrow()
+      describe('@FireFox', () => {
+        describe('.toISOString()', () => {
+          it('throws', () => {
+            expect(() => oDate.toISOString()).toThrow()
+          })
+        })
+
+        describe('.toTimeString()', () => {
+          it('equals "Invalid Date"', () => {
+            expect(dateTimeString).toEqual('Invalid Date')
+          })
         })
       })
     } else {
@@ -483,9 +515,17 @@ describe('Date', () => {
     })
 
     if (isFireFox()) { // v 143.0
-      describe('.toISOString() @ FireFox', () => {
-        it('throws', () => {
-          expect(() => oDate.toISOString()).toThrow()
+      describe('@FireFox', () => {
+        describe('.toISOString()', () => {
+          it('throws', () => {
+            expect(() => oDate.toISOString()).toThrow()
+          })
+        })
+
+        describe('.toTimeString()', () => {
+          it('equals "Invalid Date"', () => {
+            expect(dateTimeString).toEqual('Invalid Date')
+          })
         })
       })
     } else {
@@ -518,9 +558,17 @@ describe('Date', () => {
     })
 
     if (isFireFox()) { // v 143.0
-      describe('.toISOString() @ FireFox', () => {
-        it('throws', () => {
-          expect(() => oDate.toISOString()).toThrow()
+      describe('@FireFox', () => {
+        describe('.toISOString()', () => {
+          it('throws', () => {
+            expect(() => oDate.toISOString()).toThrow()
+          })
+        })
+
+        describe('.toTimeString()', () => {
+          it('equals "Invalid Date"', () => {
+            expect(dateTimeString).toEqual('Invalid Date')
+          })
         })
       })
     } else {
@@ -554,9 +602,17 @@ describe('Date', () => {
     })
 
     if (isFireFox()) { // v 143.0
-      describe('.toISOString() @ FireFox', () => {
-        it('throws', () => {
-          expect(() => oDate.toISOString()).toThrow()
+      describe('@FireFox', () => {
+        describe('.toISOString()', () => {
+          it('throws', () => {
+            expect(() => oDate.toISOString()).toThrow()
+          })
+        })
+
+        describe('.toTimeString()', () => {
+          it('equals "Invalid Date"', () => {
+            expect(dateTimeString).toEqual('Invalid Date')
+          })
         })
       })
     } else {

From de1a82825ad82ef7b644f05f7c7f418bdaf46d82 Mon Sep 17 00:00:00 2001
From: JCGuerrero <JCystems@gMail.com>
Date: Sat, 4 Oct 2025 19:32:24 -0500
Subject: [PATCH 8/8] s

---
 src/browser-detect.js | 4 ----
 testem.yml            | 1 -
 2 files changed, 5 deletions(-)
 delete mode 100644 src/browser-detect.js

diff --git a/src/browser-detect.js b/src/browser-detect.js
deleted file mode 100644
index 09bac28..0000000
--- a/src/browser-detect.js
+++ /dev/null
@@ -1,4 +0,0 @@
-// A simple function to detect Firefox from the user agent
-function isFireFox () {
-  return navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
-}
diff --git a/testem.yml b/testem.yml
index d92bac4..0275018 100644
--- a/testem.yml
+++ b/testem.yml
@@ -3,7 +3,6 @@ parallel: 4
 ignore_missing_launchers: true
 src_files: [
   'node_modules/lodash/lodash.min.js',
-  'src/browser-detect.js',
   '__tests__/**/*.unit.spec*.js'
 ]