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author | 2020-11-16 00:10:28 +0100 | |
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committer | 2020-11-16 00:10:28 +0100 | |
commit | e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch) | |
tree | 55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/es-abstract/2015/SameValue.js | |
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Diffstat (limited to 'node_modules/es-abstract/2015/SameValue.js')
-rw-r--r-- | node_modules/es-abstract/2015/SameValue.js | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2015/SameValue.js b/node_modules/es-abstract/2015/SameValue.js new file mode 100644 index 0000000..47c936d --- /dev/null +++ b/node_modules/es-abstract/2015/SameValue.js @@ -0,0 +1,13 @@ +'use strict'; + +var $isNaN = require('../helpers/isNaN'); + +// http://www.ecma-international.org/ecma-262/5.1/#sec-9.12 + +module.exports = function SameValue(x, y) { + if (x === y) { // 0 === -0, but they are not identical. + if (x === 0) { return 1 / x === 1 / y; } + return true; + } + return $isNaN(x) && $isNaN(y); +}; |