Get an Array of Unique Values in JavaScript

Get an Array of Unique Values in JavaScript

Get an Array of Unique Values in JavaScript - PHP has a function to pull the unique values out of an array, but why doesn't JavaScript?

For anyone who has used PHP before, you're probably familiar with the array_unique() function. You would use it like this:

array_unique([1, 2, 3, 4, 5, 5, 6, 7, 7]); // returns [1, 2, 3, 4, 5, 6, 7]

Unfortunately, JavaScript doesn't have a the core functionality to achieve the same result. Luckily for us, there is a couple of different ways to get there.

These methods are going to assume that you are using primitive values (string, number, etc).

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