Simply Container for using Dependency Injection pattern in JavaScript

Container.js is lightweight library (<2kb when minified), designed to facilitate how you can implement Dependency Injection pattern in your JavaScript applications. It works both versions of ECMAScript - 2015 (ES6) and 5 (ES5).

How to use

In order to use this package, you need to install it in your project:

via Bower (by default will be used ES5 version)

bower install Container.js --save

via NPM (by default will be used ES2015 version)

npm install node-container.js --save

or download it manually:

• ES5 version,
• ES2015 version.

<script src="/path/to/Container.min.js"></script>
<script src="/path/to/Es2015-Container.js"></script>

Changes

2.0.0

• Removed callback from Container.get method
• Gulp instead of Grunt
• Support for ES2015

API Reference

void Container - Constructor - arguments: [Object<string, function> elements]

Argument elements is optional. It allows to create default bindings for existing classes.

Example:

var appContainer = new Container({
    "Date": Date
});

---

boolean Container.prototype.has - arguments: [string name]

Return true if Container contains element with given name.

Example:

console.log(appContainer.has('Date')); // true
console.log(appContainer.has('MyObject')); // false

---

void Container.prototype.bind - arguments: [string name, function instance, string[]|function[] parameters]

Binds given instance with given name. Each value in parameters array should be name of element in Container or function which return value of parameter.

Example:

appContainer.bind('Window', Window, ['Date']);
appContainer.bind('Door', Door, [function () { return Math.random(); }]);

---

void Container.prototype.singleton - arguments: [string name, function instance, string[]|function[] parameters]

Binds given object as singleton in container. Parameters are the same like Container.bind method.

Example:

appContainer.singleton('Date', new Date());
appContainer.get('Date').setFullYear(2014);
appContainer.get('Date').getFullYear(); // 2014

---

mixed Container.prototype.get - arguments: [string name]

Returns instance of earlier bound instance.

Example:

appContainer.get('Window'); // an Window instance

---

void Container.prototype.remove - arguments: [string name]

Removes link between Container and given name.

Example:

appContainer.remove('Date');
appContainer.has('Date'); // false

Development

Firstly need to install dev dependencies:

npm install

For running unit tests:

npm run gulp test

For build new dists version:

npm run gulp