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Inside this article we will see available techniques by the help of which we can remove array element from an array in javascript. By using splice method, using delete operator etc we can unset an array element from array in javascript.

Using this tutorial, we will see how to remove array element from array in javascript. This article will be super easy to understand and also you can implement this code very easily.

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Let’s get started.

Method #1 Using splice() Method

The splice() method adds and/or removes array elements.

array.splice(index, howmany, item1, ....., itemX)

index: Required. The position to add/remove items. Negative values a the position from the end of the array.

howmany: Optional. Number of items to be removed.

item1, item2, …: Optional. New elements(s) to be added

Example

var names = ["Sanjay", "Vijay", "Ashish", "Dhananjay"];

console.log(names);

//Output
(4) ["Sanjay", "Vijay", "Ashish", "Dhananjay"]

#Remove elements
names.splice(1,2);

//Output
(2) ["Vijay", "Ashish"]

Method #2 Using delete Operator

The JavaScript delete operator removes a property from an object.

delete expression;

Example

var names = ["Sanjay", "Vijay", "Ashish", "Dhananjay"];

console.log(names);

//Output
(4) ["Sanjay", "Vijay", "Ashish", "Dhananjay"]

#Remove an element
delete names[0];

//Output
true

console.log(names);

//Output
(4) [empty, "Vijay", "Ashish", "Dhananjay"]

Method #3 Remove an Element by User Function

Here, we will create a user defined function. This function will search an element from given array and remove it.

Example

function remove(arr, what) {
     
    var found = arr.indexOf(what);
    
     while (found !== -1) {     
          arr.splice(found, 1);     
          found = arr.indexOf(what); 
     }
 }

var names = ["Sanjay", "Vijay", "Ashish", "Dhananjay"];

remove(names, "Ashish");

console.log(names);

//Output
(3) ["Sanjay", "Vijay", "Dhananjay"]

Method #4 Remove Element Using Filter Method

Example

var names = ["Sanjay", "Vijay", "Ashish", "Dhananjay"];

console.log(names);

//Output
(4) ["Sanjay", "Vijay", "Ashish", "Dhananjay"]

names = names.filter(e => e !== 'Ashish');

//Output
(3) ["Sanjay", "Vijay", "Dhananjay"]

names = names.filter(e => e !== 'Vijay');

//Output
(2) ["Sanjay", "Dhananjay"]

We hope this article helped you to learn How To Remove Array Element From Array in Javascript in a very detailed way.

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