'use strict'; | |
var abs = require('./abs'); | |
var floor = require('./floor'); | |
var $isNaN = require('../helpers/isNaN'); | |
var $isFinite = require('../helpers/isFinite'); | |
// https://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 absValue = abs(argument); | |
return floor(absValue) === absValue; | |
}; |