// This will get the code point for a high/low pair of surrogates (which are expressed as hexidecimal values) function getCodePoint(highSurrogate, lowSurrogate) { return (highSurrogate - 0xD800) * 0x400 + lowSurrogate - 0xDC00 + 0x10000; } // A function to get the surrogates from a given code point in the astral plain (aka higher than 0xFFFF) function getSurrogatePair(codePoint) { let highSurrogate = Math.floor((codePoint - 0x10000) / 0x400) + 0xD800; let lowSurrogate = (codePoint - 0x10000) % 0x400 + 0xDC00; return [highSurrogate, lowSurrogate]; }
Posted: March 20, 2023
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