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### How can you reliably test if a value is equal to NaN?

What is NaN? What is its type? How can you reliably test if a value is equal to NaN?

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- 2 votes2 answers124 views
### How can you reliably test if a value is equal to NaN?

What is NaN? What is its type? How can you reliably test if a value is equal to NaN?