constructor-kit

Constructor-Kit

Constructor Kit is a simple, convenient and backward compatible constructor creation API for JavaScript.

Supports Nodejs, Bower, AMD and loading as a global browser <script>.

Install

bower install constructor-kit

Or

npm install constructor-kit

Bower

To use the component you will have to bundle the component using a tool like Browserify. For example:

./public/modules/app.js:

var ck = require('constructor-kit')
console.log(typeof ck)

command line:

browserify -t debowerify ./public/modules/app.js > ./public/app.max.js

Advantages

• Built on core JavaScript features, introduces no new concepts
• Works with all legacy and new JavaScript frameworks
• Extremely lightweight and easy to use

Example usage

var o = {
  toString: function () {
    return ':>' + Object.prototype.toString.call(this);
  }
};

var C = constructorKit(function (message) {
  this.message = message;
}, {
  toString: function () {
    return this.message + o.toString.call(this);
  }
}, o);

var D = constructorKit(function () {
  C.call(this, 'Message from D!');
}, {
  toString: function () {
    return C.prototype.toString.call(this).toUpperCase();
  }
}, C);

var c = new C('Hello World!');
var d = new D();

// Logs: ':>[object Object]'
console.log('o.toString:', o.toString()); 
// Logs: 'Hello World!:>[object Object]
console.log('c.toString:', c.toString()); 
// Logs: 'MESSAGE FROM D!:>[OBJECT OBJECT]'
console.log('d.toString:', d.toString());

Reference

constructorKit(constructor)
constructorKit(constructor, prototypeProperties)
constructorKit(constructor, prototypeProperties, prototypeChain)

The parameter constructor is the actual constructor and the prototypeProperties parameter is a plain JavaScript object containing all the properties to have mixed into the constructor's prototype. The prototypeChain is an object or function (i.e. another constructor). A prototype chain will be created with the object or with the function's prototype property and assigned to the prototype property of the constructor parameter before returning the constructor.

NOTE: prototypeProperties can be null.