Edit File: es6.string.from-code-point.js
var $export = require('./_export'); var toAbsoluteIndex = require('./_to-absolute-index'); var fromCharCode = String.fromCharCode; var $fromCodePoint = String.fromCodePoint; // length should be 1, old FF problem $export($export.S + $export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', { // 21.1.2.2 String.fromCodePoint(...codePoints) fromCodePoint: function fromCodePoint(x) { // eslint-disable-line no-unused-vars var res = []; var aLen = arguments.length; var i = 0; var code; while (aLen > i) { code = +arguments[i++]; if (toAbsoluteIndex(code, 0x10ffff) !== code) throw RangeError(code + ' is not a valid code point'); res.push(code < 0x10000 ? fromCharCode(code) : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00) ); } return res.join(''); } });
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