Concatenating a String and Another Data Type
To concatinate a string and a number, use the styring concatination operator. This is because JavaScript converts the number to a string. To use the + operator with a number, or numbers that are in string data type requires using parseInt() or parseFloat() to convert the strings to numbers. More ...
JavaScript Code for Binary to Decimal - Decimal to Binary Conversion
To convert a binary number to decimal add together the decimal weight of all positions that contain a 1. To convert a decimal number to binary place a 1 in all positions where you can subtract the weight of the binary position. More ...
HTML5 Canvas lineCap and lineJoin Attributes
The HTML5 canvas element is a webpage container for graphics. You can use JavaScript to draw within the canvas element. In this article to learn how to draw lines with round or square end caps and how to specify that where two lines join the joint should be miter, round or beveled. More ...
Java Script Code to Move Items Between Select Lists
In this article you'll learn how to use Java Script to move items from one select list to a second select list. I'll explain the code in detail so that you'll be able to fully understand and modify it for your own use. More ...
Java Script Message Boxes
Java Script provides three different types of message boxes that allow you to display a short message to the user, or request a bit of information from the user. If one of these built-in message boxes don't suit your needs, this article shows you how to create your own custom message box. More ...
Replace Drop-down with Drag-and-drop
From a webpage designers point of view, drop-down lists require a lot of html tags. Wouldn't it be nice if you could just let the user drag-and-drop text into a simple text box. You can! More ...
Password Protection Using the JavaScript Cookie Method
You can password protect a webpage or your entire website with some very simple JavaScript. In this article, I provide you with the code to password protect your website with JavaScript using cookies. This method should NOT be used for anything that absolutely MUST be password protected. Updated to add requested new features. More ...
Easy Animated Banners with Java Script
In this article, I will show you how to use Java Script to create an animated banner. Using Java Script allows you to edit or replace images in the animation sequence, and change the amount of time each image is displayed without doing any recompiling. More ...
How Far Did the User Scroll?
In this article you learn how to use Java Script to determine how far a user scrolled your webpage before leaving, and how to log this data on the server with an example using ASP. More ...
Easy Moving Popup Code
You have probably come across a webpage where a small window appears at the side of the webpage and drifts to the center of the webpage. They are commonly used to present you with a form where you can enter your email address to subscribe to a newsletter. In this article I give you the code to create this type of moving popup window. More ...
Easy JavaScript FileReader Code
The JavaScript FileReader object allows web pages to read files stored on the user's computer. Files may be selected using the input element, or selected with a drag and drop operation. More ...
Prototype Keyword Gives JavaScript Object Oriented Inheritance
The way JavaScript supports inheritance is not like true object oriented languages like C+. In JavaScript, the prototype keyword allows an object to inherit the properties and methods of another object. More ...
