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Discussion on: Array.map() much slower than for loop

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henryjw profile image
Henry Williams

But isn't that essentially what the for loop is also doing?

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atwright147 profile image
Andy Wright

Correct. However, you should avoid using the for loop in general, because it will iterate over every property of the item passed to it including things which you might not want to iterate over (like a for in loop would do).

Alternatives to for include: forEach, for of, map etc