How to use forEach() Method In Javascript

By using the forEach() method, we can iterate over the elements in the array, and we will push into the new array if it doesn’t exist in the array.

Example: In this example, we will see the use of the forEach() method.

Javascript

let arr = ["apple", "mango",
          "apple", "orange", "mango", "mango"];

function removeDuplicates(arr) {
    let unique = [];
    arr.forEach(element => {
        if (!unique.includes(element)) {
            unique.push(element);
        }
    });
    return unique;
}
console.log(removeDuplicates(arr));

Output:

["apple", "mango", "orange"]

How to Remove duplicate elements from array in JavaScript ?

In this article, we will discuss the methods to remove duplicate elements from a Javascript array. There are various methods to remove duplicates in the array.

These are the following ways:

Table of Content

Using filter() Method
Using set() Method
Using forEach() Method
Using reduce() Method
Using indexOf() Method
Using a third-party library
Using Map

Below all the methods are described with proper examples:

How to use forEach() Method In Javascript

How to Remove duplicate elements from array in JavaScript ?

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