JavaScript Remove Duplicate Elements from Array

There are many methods to remove duplicates from an array using JavaScript methods. Some of these methods include:

Method 1: Using the filter() method
Method 2: Using the Set() method
Method 3: Using the findIndex() method

Method 1: Using the filter() method

The filter() method creates a refreshed array by selecting elements that satisfy a condition. To remove duplicate elements, simply provide a function to filter() that verifies whether an element is already in the new array.

Method 2: Using the Set() method

A set is like a group of special items with no duplicate items. If you want to remove duplicate items in an array, just change the array into a set, and then turn the set back into an array.

Method 3: Using the forEach() and indexOf() methods

You can remove duplicate elements from an array by looping through it with forEach() and checking if each element is already in a new array using indexOf(). If not, add it to the new array

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