From 1c4cf654d7fbc5246220563a49749049b46e76ee Mon Sep 17 00:00:00 2001
From: taichi221228 <taichi221228@icloud.com>
Date: Wed, 24 Apr 2024 10:00:13 +0900
Subject: [PATCH] Remove unnecessary stringFromCodePoint function polyfill in
 emoji_utils

Removed the unnecessary stringFromCodePoint function polyfill from the emoji_utils.ts file. Instead, we use the built-in JavaScript function String.fromCodePoint to simplify the code.
---
 .../mastodon/features/emoji/emoji_utils.ts    | 46 +------------------
 1 file changed, 1 insertion(+), 45 deletions(-)

diff --git a/app/javascript/mastodon/features/emoji/emoji_utils.ts b/app/javascript/mastodon/features/emoji/emoji_utils.ts
index bdb8e301dec..e1c8bbda084 100644
--- a/app/javascript/mastodon/features/emoji/emoji_utils.ts
+++ b/app/javascript/mastodon/features/emoji/emoji_utils.ts
@@ -36,50 +36,6 @@ const buildSearch = (data: Data) => {
 
 /* eslint-disable */
 
-const _String = String;
-
-const stringFromCodePoint =
-  _String.fromCodePoint ||
-  function () {
-    let MAX_SIZE = 0x4000;
-    let codeUnits = [];
-    let highSurrogate;
-    let lowSurrogate;
-    let index = -1;
-    let length = arguments.length;
-    if (!length) {
-      return '';
-    }
-    let result = '';
-    while (++index < length) {
-      let codePoint = Number(arguments[index]);
-      if (
-        !isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
-        codePoint < 0 || // not a valid Unicode code point
-        codePoint > 0x10ffff || // not a valid Unicode code point
-        Math.floor(codePoint) !== codePoint // not an integer
-      ) {
-        throw RangeError('Invalid code point: ' + codePoint);
-      }
-      if (codePoint <= 0xffff) {
-        // BMP code point
-        codeUnits.push(codePoint);
-      } else {
-        // Astral code point; split in surrogate halves
-        // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
-        codePoint -= 0x10000;
-        highSurrogate = (codePoint >> 10) + 0xd800;
-        lowSurrogate = (codePoint % 0x400) + 0xdc00;
-        codeUnits.push(highSurrogate, lowSurrogate);
-      }
-      if (index + 1 === length || codeUnits.length > MAX_SIZE) {
-        result += String.fromCharCode.apply(null, codeUnits);
-        codeUnits.length = 0;
-      }
-    }
-    return result;
-  };
-
 const _JSON = JSON;
 
 const COLONS_REGEX = /^(?::([^:]+):)(?::skin-tone-(\d):)?$/;
@@ -91,7 +47,7 @@ function unifiedToNative(unified) {
     // @ts-expect-error
     codePoints = unicodes.map((u) => `0x${u}`);
 
-  return stringFromCodePoint.apply(null, codePoints);
+  return String.fromCodePoint(...codePoints);
 }
 
 // @ts-expect-error