mirror of https://github.com/jkjoy/sunpeiwen.git
18 lines
445 B
JavaScript
18 lines
445 B
JavaScript
'use strict';
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var abs = require('./abs');
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var floor = require('./floor');
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var $isNaN = require('../helpers/isNaN');
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var $isFinite = require('../helpers/isFinite');
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// https://262.ecma-international.org/6.0/#sec-isinteger
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module.exports = function IsInteger(argument) {
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if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
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return false;
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}
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var absValue = abs(argument);
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return floor(absValue) === absValue;
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};
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