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node_modules/es-abstract/2017/IsInteger.js
| 21 lines
| 514 B
| application/javascript
| JavascriptLexer
|
r789 | 'use strict'; | |||
var GetIntrinsic = require('../GetIntrinsic'); | ||||
var $Math = GetIntrinsic('%Math%'); | ||||
var $floor = $Math.floor; | ||||
var $abs = $Math.abs; | ||||
var $isNaN = require('../helpers/isNaN'); | ||||
var $isFinite = require('../helpers/isFinite'); | ||||
// https://www.ecma-international.org/ecma-262/6.0/#sec-isinteger | ||||
module.exports = function IsInteger(argument) { | ||||
if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) { | ||||
return false; | ||||
} | ||||
var abs = $abs(argument); | ||||
return $floor(abs) === abs; | ||||
}; | ||||