Remove the First 2 Elements from an Array in JavaScript

Remove the First 2 Elements from an Array #

To remove the first 2 elements from an array, call the splice() method, passing it 0 and 2 as parameters, e.g. arr.splice(0, 2). The splice method will delete the first two elements from the array and return a new array containing the deleted elements.

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// 👇️ with Mutation
const arr = ['one', 'two', 'three', 'four'];

arr.splice(0, 2);
console.log(arr); // 👉️ ['three', 'four']

We used the Array.splice method to delete the first 2 elements from an array.

These are the 2 arguments we passed to the method:

1. start index - the index at which to start changing the array
2. delete count - how many elements we want to delete from the array

We removed the first 2 elements in the array by setting the delete count parameter to 2.

To remove the first 2 elements from an array, call the slice() method, passing it 2 as a parameter, e.g. arr.slice(2). The slice method will return a new array that contains all, but the first 2 elements from the original array.

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// 👇️ without Mutation
const arr = ['one', 'two', 'three', 'four'];
const newArr = arr.slice(2);
console.log(newArr); // 👉️ ['three', 'four']

console.log(arr); // 👉️ ['one', 'two', 'three', 'four']

The only parameter we passed to the slice method is the start index - the index of the first element that should be included in the new array.

The difference between this and the previous approach is that the slice method does not change the contents of the original array.

Further Reading #

• Get the First 2 Elements of an Array in Javascript
• Remove the First 2 Characters from a String in JavaScript