Removes all duplicates from an array in place.
First install using npm:
npm install uniq
Then use it as follows:
var arr = 1 1 2 2 3 5arrconsole//Prints://// 1,2,3,5//
require("uniq")(array[, compare, sorted])
Removes all duplicates from a sorted array in place.
arrayis the array to remove items from
compareis an optional comparison function that returns 0 when two items are equal, and something non-zero when they are different. If unspecified, then the default equals will be used.
sortedif true, then assume array is already sorted
Returns: A reference to
O(array.length * log(arra.length)) or
Why use this instead of underscore.uniq[ue]?
A few reasons:
- This library updates the array in place without making an extra copy (and so it is faster for large arrays)
- It also accepts a custom comparison function so you can remove duplicates from arrays containing object
- It is more modular in the sense that it doesn't come with a bazillion other utility grab bag functions.
(c) 2013 Mikola Lysenko. MIT License