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Empty a JavaScript Array

24 December, 2020

Posted in code

Ahmed Awais shared this simple tip to empty a JavaScript Array.

arr.length = 0;

So simple right? But why would you want to do this?

Perhaps your application uses an array to store a list of products, and when a user applies a filter facet, you could empty the array before populating it again with the new set of filtered products.

Check out the original tweet below for more discussion on the topic.