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编辑当前文件:/home/freeclou/app.optimyar.com/backend/node_modules/is-nan/shim.js
'use strict'; var define = require('define-properties'); var getPolyfill = require('./polyfill'); /* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */ module.exports = function shimNumberIsNaN() { var polyfill = getPolyfill(); define(Number, { isNaN: polyfill }, { isNaN: function testIsNaN() { return Number.isNaN !== polyfill; } }); return polyfill; };