compare-function

compare-function

Effortlessly compose compare functions for Array.prototype.sort. You provide a value accessor function, it handles the a < b ? -1 : a > b ? 1 : 0 dance.

Install

$ npm install compare-function

Example

var compare = require('compare-function')

var songs = [{
  artist: 'Joy Division',
  track: 'Warsaw'
},{
  artist: 'New Order',
  track: 'Blue Monday'
},{
  artist: 'Freebass',
  track: 'Plan B'
}]

function artist (song) {
  return song.artist
}

songs.sort(compare(artist)).map(artist)
> ['Freebass', 'Joy Division', 'New Order']

songs.sort(compare(-1, artist)).map(artist)
> ['New Order', 'Joy Division', 'Freebass']

See also

• multi-compare

License

MIT