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JavaScript Introducing ES2015 Objects and New Collection Types For...Of

Posted by Miguel Barra
Miguel Barra
6,855 Points

I don't get the difference between forEach and for of

This. For me, they work identically.

1 Answer

Steven Parker
Steven Parker
229,708 Points
Steven Parker
Steven Parker
229,708 Points

It would be most interesting so see some code examples where these are working identically!

But "forEach" is an array method, and takes a callback function argument. The callback is passed the current item, it's index value, and the array itself.

And "for...of" is a type of loop where the loop variable is assigned to the current item for each loop. It has a code block instead of a callback function, and the code block has no access to the item's index.