JavaScript inheritance - http://davidshariff.com/blog/javascript-inheritance-patterns/

.0README.md

Various js sniplets

example.js

# check sub-string exists

str.indexOf("oo") !== -1

# prototype f() and regex replace

String.prototype.trim = function() {
  return this.replace(/^\s+|\s+$/g, "");
};

extend.js

//  JavaScript inheritance - http://davidshariff.com/blog/javascript-inheritance-patterns/

/**
 * 1. Pseudoclassical pattern, similar to classical programming languages.
 **/
 
var extendObj = function(childObj, parentObj) {
    var tmpObj = function () {}
    tmpObj.prototype = parentObj.prototype;
    // fix pass by reference, any changes to child.prototype won't effect parent.prototype ( and other siblings)  
    childObj.prototype = new tmpObj();
    // reset the constructor
    childObj.prototype.constructor = childObj;
};

/**
 * 2.  Douglas Crockford, The good parts - Functional pattern
 * Create a new constructor function, whose prototype is the parent object's prototype.
 **/

var vehicle = function(attrs) {
    var _privateObj = {
        hasEngine: true
    },
    that = {};
    that.name = attrs.name || null;
    that.hasEngine = function () {
        alert('This ' + that.name + ' has an engine: ' + _privateObj.hasEngine);
    };
    return that;
}

var motorbike = function () {
    // private
    var _privateObj = {
        numWheels: 2
    },
    // inherit
    that = vehicle({
        name: 'Motorbike',
        engineSize: 'Small'
    });
    // public
    that.totalNumWheels = function () {
        alert('This Motobike has ' + _privateObj.numWheels + ' wheels');
    };
    return that;
};

/**
 * 3.  Object.create as of ECMAScript 5
 **/

 var child = Object.create(parent, {
        gender : {value: 'Male'}
    });

http-headers.js

# http://stackoverflow.com/questions/220231/accessing-the-web-pages-http-headers-in-javascript

var req = new XMLHttpRequest();
req.open('GET', document.location, false);
req.send(null);
var headers = req.getAllResponseHeaders().toLowerCase();
alert(headers);

load-script.js

/**
 * http://www.stevesouders.com/blog/2010/05/11/appendchild-vs-insertbefore/
 * http://www.dustindiaz.com/scriptjs
 * http://unixpapa.com/js/dyna.html
 * http://stackoverflow.com/questions/950087/how-to-include-a-javascript-file-in-another-javascript-file
**/

javascript:(function(){

var scriptEl = document.createElement('script');
scriptEl.async = 'true';
scriptEl.type = 'text/javascript';
scriptEl.src='https://code.jquery.com/jquery-1.4.2.js';
var ref = document.getElementsByTagName('script')[0];
ref.parentNode.insertBefore(scriptEl, ref);	

  
})()

winctrl.js

/** In the main window: **/

var popupWin = null;

function openPopup() {
  var url = "popup.htm";
	popupWin = open( "", "popupWin", "width=500,height=400" );
	if( !popupWin || popupWin.closed || !popupWin.doSomething ) {
		popupWin = window.open( url, "popupWin", "width=500,height=400" );
	} else popupWin.focus();
}

function doSomething() {
	 openPopup();
	 popupWin.doSomething();
}

/** In the popup: **/

self.focus();

function doSomething() {
  alert("I'm doing something");
}