size: add utf16.browser impl

package.json

@@ -124,6 +124,7 @@
     "/single-byte.node.js",
     "/utf16.js",
     "/utf16.d.ts",
+    "/utf16.browser.js",
     "/utf16.native.js",
     "/utf16.node.js",
     "/utf8.js",
@@ -205,6 +206,7 @@
       "types": "./utf16.d.ts",
       "node": "./utf16.node.js",
       "react-native": "./utf16.native.js",
+      "browser": "./utf16.browser.js",
       "default": "./utf16.js"
     },
     "./utf8.js": {
@@ -222,6 +224,7 @@
     }
   },
   "browser": {
+    "./utf16.js": "./utf16.browser.js",
     "./fallback/utf8.auto.js": "./fallback/utf8.auto.browser.js"
   },
   "react-native": {

tests/utf16.noenc.test.cjs

@@ -1,3 +1,7 @@
-delete globalThis.TextEncoder
-if (!globalThis.Deno) delete globalThis.TextDecoder // Deno path requires it
-require('./utf16.test.js')
+if (process.env.EXODUS_TEST_IS_BROWSER || globalThis.Deno) {
+  require('node:test').test.skip('Under browsers and Deno, TextDecoder is required')
+} else {
+  delete globalThis.TextEncoder
+  delete globalThis.TextDecoder
+  require('./utf16.test.js')
+}

utf16.browser.js

@@ -0,0 +1,8 @@
+// We trust browsers to always have correct TextDecoder for utf-16le/utf-16be with ignoreBOM without streaming
+
+import { encodeApi, decodeApiDecoders } from './fallback/utf16.js'
+
+export const utf16fromString = (str, format = 'uint16') => encodeApi(str, false, format)
+export const utf16fromStringLoose = (str, format = 'uint16') => encodeApi(str, true, format)
+export const utf16toString = (arr, format = 'uint16') => decodeApiDecoders(arr, false, format)
+export const utf16toStringLoose = (arr, format = 'uint16') => decodeApiDecoders(arr, true, format)