object.pickomit

object.pickomit

Returns a copy of the object based on which object properties are included or excluded. If the key has a - in front, it is marked excluded, otherwise it is marked as included. Also can be specified which properties will be included by default.

Install

Install with npm:

$ npm i object.pickomit

Usage

const pickOmit = require('object.pickomit');

To pick or omit, pass the keys as an array:

pickOmit.select({ a: 'a', b: 'b', c: 'c', d: 'd' }, ['a', 'b'])
// pick => { a: 'a', b: 'b' }

pickOmit.select({ a: 'a', b: 'b', c: 'c', d: 'd' }, ['-a', '-b'])
// omit => { c: 'c', d: 'd' }

keys can also be pass as string.

pickOmit.select({ a: 'a', b: 'b', c: 'c', d: 'd' }, 'a b')
// pick => { a: 'a', b: 'b' }

pickOmit.select({ a: 'a', b: 'b', c: 'c', d: 'd' }, '-a -b')
// omit => { c: 'c', d: 'd' }

Throws an error if pick and omit keys are passed together.

pickOmit.select({ a: 'a', b: 'b', c: 'c', d: 'd' }, 'a -b')
// Error: Keys cannot have a mix of inclusion and exclusion.

setDefaultPicks

It sets the keys to be picked by default even if they are not passed as parameters. Keys can be passed as string or arrays as above.

const pickOmit = require('object.pickomit').setDefaultPicks('a b');

pickOmit.select({ a: 'a', b: 'b', c: 'c', d: 'd' }, 'd')
// => { a: 'a', b: 'b', d: 'd' }

If the default pick keys are not wanted to be included, they are passed with a - in front of the key.

pickOmit.select({ a: 'a', b: 'b', c: 'c', d: 'd' }, '-a d')
// => { b: 'b', d: 'd' }

Author

Furkan Işıtan

• github/furkanisitan

License

Copyright © 2020, Furkan Işıtan Released under the MIT License.