初始化

康凯

2022-05-20 aa4c235a8ca67ea8b731f90c951a465e92c0a865

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var $ = require('../internals/export');
 
// `Number.isNaN` method
// https://tc39.github.io/ecma262/#sec-number.isnan
$({ target: 'Number', stat: true }, {
  isNaN: function isNaN(number) {
    // eslint-disable-next-line no-self-compare
    return number != number;
  }
});