mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-25 09:55:15 +00:00
47 lines
1.2 KiB
Markdown
47 lines
1.2 KiB
Markdown
|
uniq
|
||
|
====
|
||
|
Removes all duplicates from an array in place.
|
||
|
|
||
|
Usage
|
||
|
=====
|
||
|
First install using npm:
|
||
|
|
||
|
npm install uniq
|
||
|
|
||
|
Then use it as follows:
|
||
|
|
||
|
```javascript
|
||
|
|
||
|
var arr = [1, 1, 2, 2, 3, 5]
|
||
|
|
||
|
require("uniq")(arr)
|
||
|
console.log(arr)
|
||
|
|
||
|
//Prints:
|
||
|
//
|
||
|
// 1,2,3,5
|
||
|
//
|
||
|
```
|
||
|
|
||
|
## `require("uniq")(array[, compare, sorted])`
|
||
|
Removes all duplicates from a sorted array in place.
|
||
|
|
||
|
* `array` is the array to remove items from
|
||
|
* `compare` is 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.
|
||
|
* `sorted` if true, then assume array is already sorted
|
||
|
|
||
|
**Returns:** A reference to `array`
|
||
|
|
||
|
**Time Complexity:** `O(array.length * log(arra.length))` or `O(array.length)` if `sorted`
|
||
|
|
||
|
|
||
|
## 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.
|
||
|
|
||
|
# Credits
|
||
|
(c) 2013 Mikola Lysenko. MIT License
|