js-nested-pick

Creates an object composed of the picked object properties from a nested object using a dot path, select specific fields based conditions with filter arrays with MongoDB queries

Can be used in js/ts projects in node/browser.

Support select number of fields from nested object with dot and object with query:

How to use:

const pick = require('js-nested-pick');

const data = {
	name: 'Dan',
	age: 30,
}

const values = pick(data, ['name']) // {name: 'Dan'}

• Simple select ['name', 'age'] Select name and age from object

• Deep select with dot ['user.firstname'] Select user.name from inner object

• Ommit fileds ['-password'] Select all fields except the password

• Deep ommit fileds with dot ['-user.address'] Select all fields except the user address

• Deep select/ ommit using object with path ['*', {path: 'user', select: ['-paasword']}] Select all fields, but in the user object, remove the password field

• Select field in root object base of query on the data - using sift (read sift docs to see the options) [{when: {isPublic: true}, then: ['*'], otherwise: ['title']}] When the data.isPublic equal to true then in the data.posts select all fields, otherwise select only the title (post can be object or array)

• Select field in inner object or array base of query on the data - using sift (read sift docs to see the options) [{path: 'post', when: {isPublic: true}, then: ['*'], otherwise: ['title']}] When the data.isPublic equal to true then in the data.posts select all fields, otherwise select only the title (post can be object or array)

• Select field in inner object or array base of query on the item data - using sift (read sift docs to see the options) [{path: 'posts', where: {isPublic: true}, then: ['*'], otherwise: ['title']}] When the post.isPublic equal to true then select all post fields, otherwise select only the title (post can be object or array)

In-browser Playgrounds

Dependencies:

1. lodash/get
2. lodash/set
3. lodash/omit
4. sift

Test with jest