For Each Loop vs For Loop: What's the Difference?

What’s the difference between a for-each loop and a for loop?

A for loop iterates over a range of values, while a for-each loop iterates over elements in a collection.

Can you give me an example of each?

Sure! A for loop in JavaScript looks like this: for (let i = 0; i < array.length; i++) { ... }. A for-each loop would be: array.forEach(item => { ... });.

When should I use a for-each loop instead of a for loop?

Use a for-each loop for cleaner code when you don't need the index, and a for loop when you need more control over the iteration.

Are there performance differences between the two?

Yes, for loops can be more performant in some cases, especially with large datasets, as they avoid the overhead of function calls in for-each.