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isRealNaN

isRealNaN(needle)

检测是否为NaN

返回值:Boolean

参数说明类型可选值默认值
needle待检测对象*
js
console.log(JW.isRealNaN('NaN'));
console.log(JW.isRealNaN(NaN));
console.log(JW.isRealNaN({}));