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What are the differences between for...of and forEach in JavaScript?

An example of an AI chatbot conversation about for...of vs forEach in JavaScript.

😀
You

Can you explain the differences between for...of and forEach in JavaScript?

MagicBuddy
MagicBuddy

Sure! The for...of loop is used to iterate over iterable objects like arrays, while forEach is a method that executes a provided function once for each array element.

😀
You

Are there any performance differences between the two?

MagicBuddy
MagicBuddy

Yes, for...of can be faster than forEach in some cases, especially with large arrays, because it doesn't involve a function call for each iteration.

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You

Can I use break or continue with forEach?

MagicBuddy
MagicBuddy

No, you can't use break or continue with forEach. If you need to exit the loop early, for...of is a better choice.

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You

Which one should I use in my code?

MagicBuddy
MagicBuddy

It depends on your needs. Use forEach for cleaner code when you don't need to break out of the loop, and for...of when you need more control.

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