There are a few methods you can use to remove a specific item from an array without mutating the array. If you have an input array, like as a function parameter, best practices dictate that you should not mutate the array. How to remove an element from an array without mutating the array Remove an element at any index with splice.Remove the first element of an array with shift.Remove the last element of an array with pop.How to remove an element from an array while mutating the array.Remove the first element of an array with destructuring and the rest operator.Remove an element from an array with a for loop and push.Remove an element of a certain value with filter.Remove an element at any position of an array with slice and concat.Remove the last element of an array with slice.Remove the first element of an array with slice.How to remove an element from an array without mutating the array.

Here you can find a handy summary of the article content, if you want to navigate to a section in particular. These methods do mutate the array itself. Or the array is used in other parts of your code, and mutating it would cause unexpected issues.īut, for completeness, the second half of the article will list methods to remove an item from an array in place. For example, if you don't want to mutate your React State. In fact, this is what you will want to do most often. In the first half of this article you will learn all the methods that allow you to remove an element from an array without mutating the original array. You will often need to remove an element from an array in JavaScript, whether it's for a queue data structure, or maybe from your React State.

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