7 ways to remove duplicates from an array in JavaScript

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Jayanth Babu wrote this article about how to remove duplicates from an array in JavaScript. It’s a common use case in many projects to need to remove duplicates from array in JavaScript. For interviews, it’s a common coding challenge to practice for everyone.

The article goes over:

  • Use the filter method
  • By using a set
  • Using the forEach method
  • By using the reduce method
  • Adding a unique method to the Array Prototype
  • By using Underscore JS
  • Removing duplicate Objects from a given array

Each method is documented by example. Sweet and short!

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Tags nodejs javascript web-development programming