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Discussion on: Try Optional Chaining and Nullish Coalescing on JSitor, its live

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Seanmclem • Edited

Does Nullish coalescing still return a Zero when the tested value goes back to being null? Or is that react's fault

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Ashvin Kumar Suthar

Hi Seanmclem, Sorry I am not able to understand what exactly is the condition you are asking. Is it ( 0 ?? null) or something else. If you want to test this by your self you can this web dev tool jsitor.com/QIPOSicZu and try this out. Thanks.

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Seanmclem
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Ashvin Kumar Suthar

Nullish coalescing is a little different from the regular ternary operator and && operator statements.

In the statement

val1 ?? val2,

It will return val2 only if val1 is either null or undefined. For the rest of the other conditions, it will always return val1.