公共组件、公共样式集合
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'use strict';
var ToNumber = require('./ToNumber');
var abs = require('math-intrinsics/abs');
var floor = require('math-intrinsics/floor');
var $isNaN = require('math-intrinsics/isNaN');
var $isFinite = require('math-intrinsics/isFinite');
var $sign = require('math-intrinsics/sign');
// http://262.ecma-international.org/5.1/#sec-9.4
module.exports = function ToInteger(value) {
var number = ToNumber(value);
if ($isNaN(number)) { return 0; }
if (number === 0 || !$isFinite(number)) { return number; }
return $sign(number) * floor(abs(number));
};