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schangxiang@126.com

2025-09-19 9be9c3784b2881a3fa25e93ae2033dc2803c0ed0

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'use strict';
 
/* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */
 
module.exports = function isNaN(value) {
    return value !== value;
};