null vs undefined Explained in JavaScript #coding #javascript #reactjs
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null vs undefined Explained in JavaScript #coding #javascript #reactjs
null and undefined look similar in JavaScript, but they mean very different things. In this short, I explain what undefined actually means, when to use null, and why null == undefined is true but null === undefined is false. If you write JavaScript or React, this is a core concept you should understand. Follow for more short, practical dev ...
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