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JavaScript JavaScript Arrays Loop Through Arrays Loop Through an Array

Claire Kao
Claire Kao
4,393 Points
Posted by Claire Kao
Claire Kao
4,393 Points

Declaring variable outside of the function

Can I render the items variable outside of the function? I've tried it myself. The result looks the same. Wonder what's the different having the item inside/outside the function. Thanks!

1 Answer

Steven Parker
Steven Parker
229,771 Points
Steven Parker
Steven Parker
229,771 Points

The function will perform exactly the same if items is created in the global space, but since it is only used inside the function it is better practice to create it there. That way, after the function is finished, that variable can be disposed by the system and the space reclaimed instead of it continuing to take up space and not be used.