inherits.js v0.2.0

inherits.js 0.2.0

Easily inherit prototypes.

Getting started

There is more than one way to use inherits.js inside your project. I prefer using npm for dependency management.

If you haven't used npm (Node Package manager) before, be sure to check out the Getting Started guide, as it explains how to install and use npm. Once you're familiar with that process, you may install the inherits.js module with this command inside your project:

npm install inherits.js --save-dev

Once the module has been installed, you may integrate that file into your build process (e.g concatenating and uglifying your JS with Grunt or whatever) since the --save-dev option is meant for development only.

inherits(constructor, superConstructor)

Inherit the prototype from one constructor into another. The prototype of Constructor will be set to a new object created from SuperConstructor.

It does not make use of Object.setPrototype since it's usage is to be avoided following the MDN warning about Object.setPrototypeOf and instead uses Object.create to also fullfill support for older browsers.

Anyway. Here is a code example how to use the inherits.js function:

// make sure inherits.js is already available when this code runs

// a super class
var SuperClass = function() {
    this.someProperty = 42;
}

SuperClass.prototype.justDoIt = function(msg) {
    alert(msg);
}

// a class we want to inherit from SuperClass
var DoTheFlop = function() {
    // this makes sure to also inherit the properties of SuperClass defined inside it's constructor function
    // which may be crucial for it's methods to run
    SuperClass.call(this);
}

inherits(DoTheFlop, SuperClass);

DoTheFlop.prototype.flop = function() {
    this.justDoIt('Everybody do the flop!');
}