Sha256: 02436c7105c7453f405e3e2c4367fee698c88567aba117679ffb36f57533b1d5
Contents?: true
Size: 708 Bytes
Versions: 81
Compression:
Stored size: 708 Bytes
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var $fromCharCode = GetIntrinsic('%String.fromCharCode%');
var floor = require('./floor');
var modulo = require('./modulo');
var isCodePoint = require('../helpers/isCodePoint');
// https://262.ecma-international.org/12.0/#sec-utf16encoding
module.exports = function UTF16EncodeCodePoint(cp) {
if (!isCodePoint(cp)) {
throw new $TypeError('Assertion failed: `cp` must be >= 0 and <= 0x10FFFF');
}
if (cp <= 65535) {
return $fromCharCode(cp);
}
var cu1 = $fromCharCode(floor((cp - 65536) / 1024) + 0xD800);
var cu2 = $fromCharCode(modulo(cp - 65536, 1024) + 0xDC00);
return cu1 + cu2;
};
Version data entries
81 entries across 27 versions & 2 rubygems