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Diffstat (limited to 'node_modules/es-abstract/5/ToInteger.js')
-rw-r--r-- | node_modules/es-abstract/5/ToInteger.js | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/node_modules/es-abstract/5/ToInteger.js b/node_modules/es-abstract/5/ToInteger.js new file mode 100644 index 000000000..a95265b9e --- /dev/null +++ b/node_modules/es-abstract/5/ToInteger.js @@ -0,0 +1,22 @@ +'use strict'; + +var GetIntrinsic = require('../GetIntrinsic'); + +var $Math = GetIntrinsic('%Math%'); + +var ToNumber = require('./ToNumber'); +var $isNaN = require('../helpers/isNaN'); +var $isFinite = require('../helpers/isFinite'); +var $sign = require('../helpers/sign'); + +var $floor = $Math.floor; +var $abs = $Math.abs; + +// http://www.ecma-international.org/ecma-262/5.1/#sec-9.4 + +module.exports = function ToInteger(value) { + var number = ToNumber(value); + if ($isNaN(number)) { return 0; } + if (number === 0 || !$isFinite(number)) { return number; } + return $sign(number) * $floor($abs(number)); +}; |