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This article explains NaN (Not a Number) in JavaScript, detailing its behavior and significance in mathematical operations. It covers how NaN is implemented at the hardware level according to the IEEE 754 standard, why it was created, and how it helps prevent program crashes from division errors.
This article explains what NaN (not-a-number) is in JavaScript and how it behaves in mathematical operations and comparisons. It highlights the unique properties of NaN, including that it is not equal to itself, and discusses methods to check for NaN values correctly.