JavaScript - Remove a specific element from an array JavaScript - Remove a specific element from an array

It's quite often that I have an array of elements and when a certain condition happens that I need to remove a particular element from my JavaScript array. Let's explore how indexOf and splice accomplish this.

Using splice to remove from an array

Removing an element from an array is a two part process:

  1. Find the element in the array
  2. Remove the element at the position found

Let's take a look at an example:

var myArray = [1,2,3,4,5];
var positionToRemove = myArray.indexOf(4);
if (positionToRemove > -1)
myArray.splice(positionToRemove, 1);

The key solution is using the JavaScript splice function. I am using it with two parameters. Parameter one is where we want to start removing from and parameter two is how many elements to remove. In our case, 1.

Published on Feb 7, 2019

Tags: JavaScript | splice | indexof

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