diff --git a/package.json b/package.json
index e5f9a10..d4f14e3 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
   },
   "homepage": "https://github.com/DanielRomeo/jackscript-js#readme",
   "dependencies": {
+    "@nestjs/throttler": "^6.2.1",
     "@types/jest": "^29.5.12",
     "jest": "^29.7.0",
     "ts-jest": "^29.2.4"
diff --git a/src/romeo.ts b/src/romeo.ts
index 371fbcd..78b0d49 100644
--- a/src/romeo.ts
+++ b/src/romeo.ts
@@ -73,9 +73,7 @@ let codfalse = [1,1];
 // console.log(isCoordinate<string, number>(cod3)) // returns
 //console.log(isCoordinate(codfalse)) // returns false
 
-
-// console.log(coordinatesEqual(cod, reflexiveTest[0]));
-// console.log(reflexiveTest.entries().next());
+// console.log(reflexiveTest.values().next());
 
 // const func = () => {
 //     reflexiveTest.forEach(element => {
diff --git a/src/typechecker.test.ts b/src/typechecker.test.ts
index 471cbfc..36e9c38 100644
--- a/src/typechecker.test.ts
+++ b/src/typechecker.test.ts
@@ -8,13 +8,19 @@ describe('Coordinates typechecker methods.', () => {
     let coordinate2 : Coordinate<number, number>;
     let coordinate3 : Coordinate<string, number>;
     let coordinate4 : Coordinate<string, string>;
+
+    let coordinate5 : Coordinate<number, number>;
     let coordinate5fake = [1,1,2];
+    let cod : Coordinate<number, number>;
+    let testJackscriptSet = new JackscriptSet<Coordinate<number, number>>([[1,1],[2,2],[3,3]]);
 
 	beforeEach(() => {
 		coordinate1 = [1,1];
         coordinate2 = [2,2];
         coordinate3 = ["a",1];
         coordinate4 = ["a", "b"];
+        cod = [1,1];
+        coordinate5 = [3,3];
 	});
 	
     // test if variables are valide coordinates or not: 
@@ -33,8 +39,25 @@ describe('Coordinates typechecker methods.', () => {
     it('Value is NOT a coordinate.', () => {
         expect(isCoordinate(coordinate5fake)).toBe(false);
     })
-   
+
+    // test the coordinatesEqual() function:
+    it('Two coordinates are equal.', () => {
+        expect(coordinatesEqual(coordinate1, [1,1])).toBe(true);
+    })
+    it('Two coordinates are equal.', () => {
+        expect(coordinatesEqual(coordinate1, testJackscriptSet.values().next().value)).toBe(true);
+    })
+    // loop through identical arrays that are created differently and compare elems in each array
+    it('Two coordinates are equal.', () => { 
+        let JacksriptElement =  testJackscriptSet.values();
+        [coordinate1,coordinate2, coordinate5].forEach(element => {      
+            expect(coordinatesEqual(element, JacksriptElement.next().value)).toBe(true);    
+        });
+        
+    })
 });
 
 
 
+
+
diff --git a/yarn.lock b/yarn.lock
index 6d635b9..05d386f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -510,6 +510,11 @@
     "@jridgewell/resolve-uri" "^3.1.0"
     "@jridgewell/sourcemap-codec" "^1.4.14"
 
+"@nestjs/throttler@^6.2.1":
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/@nestjs/throttler/-/throttler-6.2.1.tgz#c241788a8b195e6c7c0cf94b1808c4cb940ac2fd"
+  integrity sha512-vdt6VjhKC6vcLBJRUb97IuR6Htykn5kokZzmT8+S5XFOLLjUF7rzRpr+nUOhK9pi1L0hhbzSf2v2FJl4v64EJA==
+
 "@sinclair/typebox@^0.27.8":
   version "0.27.8"
   resolved "https://registry.yarnpkg.com/@sinclair/typebox/-/typebox-0.27.8.tgz#6667fac16c436b5434a387a34dedb013198f6e6e"