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!snippet equality null vs undefined
isNaN(1 + null)

`isNaN(1 + null)` ↔ false

`1+null`

1

`1+undefined`

NaN

References

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JS
JS Language
Primitive
Null

Last updated on Dec 6, 2022 by Roger Jiang

!snippet equality null vs undefined

isNaN(undefined)

1+null
1+undefined
References

····

© 2023 Roger Jiang