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JavaScript Quiz

Is null equal to undefined in JavaScript?

Do you know what will be the output of this code?

JavaScript
console.log(null == undefined, null === undefined);
Show answer and explanation

The answer is true false.

The spec defines null == undefined as true, and neither is loosely equal to anything else. They are still different types, so === returns false.

That makes value == null a handy check for “null or undefined”.

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