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I understand about JavaScript spread syntax in general. But in the following code, I cannot understand why it is used when creating a new array of specific length:

const createArray = length => [...Array(length)];
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  • Have you tried comparing the result with e.g. length => Array(length)? It should quickly become obvious why you generally don't want that. Commented Apr 6, 2023 at 17:10
  • @VLAZ yes, it does. It has all the explanations I needed. Thanks a lot to you and other members. Happy coding to all. Commented Apr 6, 2023 at 17:21
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