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  • License MIT

JavaScript array.filter() compatible unique filter

Package Exports

  • array-filter-unique

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (array-filter-unique) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

array-filter-unique Build Status

JavaScript array.filter() compatible unique filter

As all unique libraries are used as a function and not within the easily stackable and immutable arr.format() style I made my own.

Install

$ npm install array-filter-unique

Usage

const arrayFilterUnique = require('array-filter-unique');

['a', 'a', 'b', 'c']
  .filter(arrayFilterUnique());
//=> ['a', 'b', 'c']

[{name: 'Alice',}, {name: 'Peter',}, {name: 'Alice',}}]
  .filter(arrayFilterUnique(o => o.name));
//=> [{name: 'Alice', …}, {name: 'Peter', …}]

API

arrayFilterUnique([selector], [last])

selector

Type: item => string

Select what to check in the given item

last

Type: boolean
Default: false

Use the last occurence of the matching item instead of the first one.

Useful with sorted inputs. For example time sorted objects containing position and temperature when you want the latest temperature for each position.

License

MIT © Edgar Toll