rubyisms

Rubyisms

Ruby style ES5 prototype extensions

Info

A highly experimental set of prototype extensions for native types in ES5 JavaScript.

Install

Using npm.

npm install rubyisms

Documentation

Full list of methods here.

Issues

Object.prototype

Rubyisms defines properties on Object.prototype. A side effect is the creation of globally scoped constants. The following should be treated as reserved keywords in the global scope, and are not writable.

• array
• bool
• func
• numeric
• object
• size
• type

Everything created will contain these as prototype properties. To override these properties on objects you must define them during construction, or explicitly define them with Object.defineProperty.

No good.

var o = {};
o.size = 5 // Will not write
o.size // 0

function Constructor () {
	this.size = 5; // Will not write
}

new Constructor().size // 0

Better.

var o = {size: 5};
o.size // 5

function Constructor () {
	Object.defineProperty(this, 'size', {
		value: 5,
		writable: true
	});
}

new Constructor().size // 5

.type

Return values from calling .type on the global object will differ. In V8 (Chrome, Node), the return string is 'global', whereas in other browsers it is 'window'.