without-same

Copy an array but leave out duplicate elements by checking a given key on each element.

API

operand::without(identity)(blacklist)

Returns an Array containing all elements that exist in operand except those with an identical key/value in blacklist.

Designed for use with :: function bind syntax, as the this property should be the Array to filter.

operand

Array instance to filter.

identity

String key name of the property by which to compare elements.

blacklist

Array containing elements to check for matching values.

Use Case

import without from 'without-same'

const snacks = [{name: 'banana'}, {name: 'cookie'}]
const sugary = [{name: 'cookie'}]

const healthy = snacks::without('name')(sugary)
// -> [{name: 'banana'}]

Peer Dependencies

This package uses Babel to transpile its code to be compatible with the node version it is installed on. Ensure you have installed the necessary peer dependencies.

npm install babel-cli babel-preset-env babel-plugin-transform-function-bind

On some older Node environments, e.g. 4.x and earlier, you may also require system-wide polyfills.

npm instal babel-polyfill

And then load the babel-polyfill library before loading this package.

Colophon

Made by Sebastiaan Deckers in Singapore 🇸🇬