Tutorials

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difference between null and undefined in JavaScript

What are the differences between null and undefined, in JavaScript? what do undefined and null have in common? Know more about null and undefined at www.tutorials2learn.com

Dynamic types in javascript – javascript data types

JavaScript has dynamic types. The JavaScript type and it’s dynamic features, how same variable can be used as different types,etc. are explained in this article.

Inheritance – Object Oriented Programming in JavaScript

How does the inheritance work in JavaScript? Is there multiple inheritance support in JavaScript? JavaScript inheritance explained in simple terms.

Object Constructor function – Object Oriented Programming in JavaScript

Object Constructor function – Object Oriented Programming in JavaScript – One of the easiest ways of defining an Object is using a constructor function. Object Constructor function helps to create different instances of an object using the same function.

Drawing a rectangle in canvas | Drawing Shapes with Canvas

This article shows how to draw a rectangle shape using the canvas tag in HTML5. cavas tag in HTML5 extends the possibilities of drawing various shapes like, rectangles, circles,etc. with various filling styles, like solid fills, gradient fills, pattern fills, etc.

Combining javascript objects into one

This article shows how to combine two objects into a single object. One of the simplest ways to combine multiple js objects into single object.

What is JSON? the basics of JSON

This tutorials describes an overview of JSON (JavaScript Object Notation). This tutorial deals with the what is JSON, what are its features, the JSON syntax,etc.

how to identify jquery version | find jquery Version

This article show multiple ways how to identify which version of jQuery is used on the page. Finding the jquery version is made easy.

Get and Set the select box options using jQuery

Getting and setting the value and the text of a selectbox using jQuery is very simple. Get selectbox value, get selectbox text, set selectbox value, set selectbox text, get selectedIndex, set selectedIndex ,etc. using jQuery are mentioned in this article.

Preload images with jQuery

Pre-loading the images is often necessary when using a new image content which was never used before on the page. This article shows the easiest way to pre-load the images with jQuery.