summaryrefslogtreecommitdiffstats
path: root/node_modules/es-abstract/2018/IsInteger.js
blob: 0f488b39a59d3715c7f62ef4d6137c190c2ff7a5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
'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;
};