JavaScript: The Most Underestimated Language

JavaScript: the most Underestimated, Undervalued and Misunderstood Language By Binny V A http://www.openjs.com/

You KNOW JavaScript! var sample_array = [42, 1337, "Hello World"]; for(var i=0; i<sample_array.length; i++) { alert(i + ") " + sample_array[i]); } function sayHi(name) { alert("Hi, "+ name); } sayHi("Binny");

DOM – Document Object Model The Document Object Model (DOM) is a platform- and language-independent standard object model for representing HTML or XML and related formats.

DOM ,[object Object],[object Object],[object Object],Useful Functions getElementsByClassName(“external-links”)‏ getElementsBySelector(“p.intro a”)‏

Undervalued ,[object Object],[object Object],[object Object],[object Object]

Underestimated ,[object Object],[object Object]

JavaScript is a Powerful language ,[object Object],[object Object],$("element").addEventListener("click", function(){ alert(this.innerHTML + " was clicked"; });

First Class functions ,[object Object],function addXTo(x) { return function(number) { return number+x; } } addFiveTo = addXTo(5); addNineTo = addXTo(9); alert(addFiveTo(3));

Polymorphic Functions ,[object Object],function addEvent(obj,evt,fn) { if (document.addEventListener) { addEvent = function (obj,evt,fn) { obj.addEventListener(evt,fn,false); } } else if (document.attachEvent) { addEvent = function (obj,evt,fn) { obj.attachEvent('on'+evt,fn); } } addEvent(obj,evt,fn); }

Misunderstood ,[object Object],[object Object]

Problems With JavaScript ,[object Object],[object Object],[object Object]

Solution to the Problem - Libraries ,[object Object],[object Object],[object Object],[object Object],[object Object]

JavaScript Libraries ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

JSL - JavaScript Library ,[object Object],[object Object]

JavaScript: The Most Underestimated Language

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