Get the Difference Between Two Arrays in JavaScript

Sometimes we want to compare the difference between two arrays in JavaScript and return the remaining values in a new array.

This can be useful for inventory or purchase management where we could compare the selected items against the available stock, for example.

In this tutorial, we will cover two approaches to this:

  1. A single set of unique items in an array.
  2. A main array containing duplicate items.

Let’s get cracking!

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