vue hello world项目
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3 years ago
var $ = require('../internals/export');
var global = require('../internals/global');
var uncurryThis = require('../internals/function-uncurry-this');
var toAbsoluteIndex = require('../internals/to-absolute-index');
var RangeError = global.RangeError;
var fromCharCode = String.fromCharCode;
// eslint-disable-next-line es/no-string-fromcodepoint -- required for testing
var $fromCodePoint = String.fromCodePoint;
var join = uncurryThis([].join);
// length should be 1, old FF problem
var INCORRECT_LENGTH = !!$fromCodePoint && $fromCodePoint.length != 1;
// `String.fromCodePoint` method
// https://tc39.es/ecma262/#sec-string.fromcodepoint
$({ target: 'String', stat: true, forced: INCORRECT_LENGTH }, {
// eslint-disable-next-line no-unused-vars -- required for `.length`
fromCodePoint: function fromCodePoint(x) {
var elements = [];
var length = arguments.length;
var i = 0;
var code;
while (length > i) {
code = +arguments[i++];
if (toAbsoluteIndex(code, 0x10FFFF) !== code) throw RangeError(code + ' is not a valid code point');
elements[i] = code < 0x10000
? fromCharCode(code)
: fromCharCode(((code -= 0x10000) >> 10) + 0xD800, code % 0x400 + 0xDC00);
} return join(elements, '');
}
});