Dmitri Pavlutin • 1/8/2020

NaN in JavaScript

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This technical article explains the JavaScript NaN value, a special number type representing invalid numeric operations. It details how to check for NaN using equality checks, isNaN(), and Number.isNaN(), and explores common scenarios that generate NaN, such as parsing invalid strings or performing arithmetic with undefined.

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#JavaScript #type checking #Equality
NaN in JavaScript

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