Filter out Duplicates from Flat JavaScript Array with array.filter
In this lesson you will learn how to remove duplicates from the flat array which is a common coding challenge for beginner JavaScript interviews.
We will learn how to write a duplicate removal function using functional programming approach with filter. The array filter method allows you to create a new array out of elements that pass a certain condition within the filter. You'll see how we can use indexOf to filter out any duplicates.
Duraimurugan Rajendran
~ 4 years ago
Hey Dimitri I always wonder how people are adding the emoji's in the their code in the demo. Could you please let us know if its copy pasted?
Lucas Minter
~ 4 years ago
There are a couple ways you could do it, you can paste them in or if you are using vscode, you can add extensions that will let you add them in pretty easily.