object-indexed-map

Object index

Tired of looping through your array of objects or object of arrays? End with it, index it by key you want, query it like a database!

Install

$ npm i object-indexed-map

Example of usage

Take a look at the example or at the tests.

Support for immutable.js

Take a look at the tests again and look for immutable-driver test.

warning in order for this to be working, you have to use immutable.Record as immutable.Map, because Record implements getters!.

The reason for this is that his library should not care how to get values from an object.

So it just uses native Javascript getters:

let value = object[key]

anything like:

let value = object.get(key)

cannot be used.

So your tree must be defined as a immutable.Record, which is easy and a good practice:

const Structure = immutable.Record({
  'todos': immutable.List(),
  'people': immutable.List()
})
 
const Todo = immutable.Record({
  'id': null,
  'text':  ''
})
 
const Human = immutable.Record({
  'id': null,
  'name': ''
})
 
const testTree = Structure({
  'todos': immutable.List([
    Todo({
      'id': 12,
      'text': 'Todo num 12'
    }),
    Todo({
      'id': 32,
      'text': 'Todo num 32'
    })
  ]),
  'people': immutable.List([
    Human({
      'id': 1,
      'name': 'vojta'
    }),
    Human({
      'id': 2,
      'name': 'honza'
    })
  ])
})