immute.js v0.1.0

Tiny Immutable data container with events api.

:page_with_curl: Tiny Immutable data container with events api.

Features

• Tiny - Less than 7KB minified
• Set object values by a path string
• Add event listeners for updates of object properties

Usage

Initialise Immute

var immute = new Immute({});

Create some event handlers

// Object now has 'donkey' property
// immute.get().donkey == immute.get().response.donkey
var donkey = immute => response =>
    immute.set('donkey', response.donkey);

var lion = immute => response =>
    immute.set('lion', response.lion);

var monkey = immute => response =>
    immute.set('monkey', response.monkey);

var footer = immute => footer =>
    immute.set('footer', footer);

Register some event listeners to update paths

// Add a list of event handlers
immute.on('response', [lion(immute), monkey(immute)]);

// When obj.response.donkey is set, set obj.footer with the same value
immute.on('response.donkey', footer(immute));

Set response property and return state

Events registered prior are fired when response is set.

var state = immute.set('response', {
    donkey: 1,
    lion: 2,
    monkey: 3
}).get();

console.log(state);
// { response: {donkey: 1, lion:2, monkey:3}, donkey: 1, lion:2, monkey:3, footer: 1 }

Installation

npm install immute.js