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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/core-js/library/modules/es6.string.from-code-point.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
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Diffstat (limited to 'node_modules/core-js/library/modules/es6.string.from-code-point.js')
| -rw-r--r-- | node_modules/core-js/library/modules/es6.string.from-code-point.js | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/node_modules/core-js/library/modules/es6.string.from-code-point.js b/node_modules/core-js/library/modules/es6.string.from-code-point.js new file mode 100644 index 00000000..bece66e2 --- /dev/null +++ b/node_modules/core-js/library/modules/es6.string.from-code-point.js @@ -0,0 +1,23 @@ +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(''); + } +}); |
