isNil javascript Code Snippet in 2025
typebeginner
Last Updated: 30 October 2025
Checks if the specified value is null or undefined.
- Use the strict equality operator to check if the value of
valis equal tonullorundefined.
const isNil = val => val === undefined || val === null;
isNil(null); // true
isNil(undefined); // true
isNil(''); // falsejavascript snippet similar to isNil For You in November 2025
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