nub

Uniqueness functions

MIT 2 个版本

unique uniq uniqBy nub nubBy

npm install nub

yarn add nub

pnpm add nub

bun add nub

Return all the unique elements of an array. You can specify your own uniqueness comparison function with nub.by too.

These work like haskell's nub and nubBy functions in Data.List.

example

$ node
> var nub = require('nub')
> nub([1,2,2,3,1,3])
[ 1, 2, 3 ]
> nub.by([ 2, 3, 5, 7, 8 ], function (x,y) { return x + y === 10 })
[ 2, 3, 5 ]

var nub = require('nub')

Return a new array with all the uniqe elements in xs.

Uniqueness is calculated === style so the types matter.

Use cmp(x,y) function to compare elements instead of the default. cmp should return whether the two elements are equal as a boolean.

With npm do:

npm install nub

To use nub in the browser, use browserify or fetch a UMD build from browserify CDN.

MIT