7f2dd5260f
- Complete React app with 7 developer tools - JSON Tool with visual structured editor - Serialize Tool with visual structured editor - URL, Base64, CSV/JSON, Beautifier, Diff tools - Responsive navigation with dropdown menu - Dark/light mode toggle - Mobile-responsive design with sticky header - All tools working with copy/paste functionality
26 lines
698 B
JavaScript
26 lines
698 B
JavaScript
'use strict';
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var GetIntrinsic = require('get-intrinsic');
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var $TypeError = require('es-errors/type');
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var $fromCharCode = GetIntrinsic('%String.fromCharCode%');
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var floor = require('./floor');
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var modulo = require('./modulo');
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var isCodePoint = require('../helpers/isCodePoint');
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// https://262.ecma-international.org/7.0/#sec-utf16encoding
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module.exports = function UTF16Encoding(cp) {
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if (!isCodePoint(cp)) {
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throw new $TypeError('Assertion failed: `cp` must be >= 0 and <= 0x10FFFF');
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}
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if (cp <= 65535) {
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return $fromCharCode(cp);
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}
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var cu1 = $fromCharCode(floor((cp - 65536) / 1024) + 0xD800);
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var cu2 = $fromCharCode(modulo(cp - 65536, 1024) + 0xDC00);
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return cu1 + cu2;
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};
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