Display a Value in Currency Format
To display a value in currency format we first round the value to the required number of decimal places, then determine if we need to add trailing zeros. More ...
Easy JavaScript Form Design
A form is an html element that allows users to enter information. To experiment with forms in JavaScript, replace the method and action attributes in the form opening tag with onSubmit='javascript return false;'
to prevent the form from being submitted to the server. More ...
Code to Block the Ad Blockers
I don't believe webmasters should have to work for free, and viewing a few banners is a very low cost for information that webmasters worked hard to research and prepare. In this article I provide code to boot ad blocker users off your Web site. More ...
Basic State Machines
A State Machine is a program, logic circuit, or mechanical device, that has a finite number of legal states. For example a traffic control signal can be red, yellow, or green. It can't be red and green. It can't be violet. More ...
HTML5 Canvas JavaScript Code to a Draw Bezier Curve
The HTML5 canvas element allows you to, when you don't need an extremely complex image, not require your webpage to load an image file, but instead to use JavaScript to the draw the graphics on your webpage. More ...
Date Picker For Your Web Site
In this article, I give you the code for a date picker calendar and I explain the code in detail so you'll feel comfortable modifying it for your own use. More ...
Code for Java Script Circle/Sphere Calculator
In this article you learn how to use to Java Script to create a Circle/Sphere calculator. The user enters the radius of a circle or sphere, and the calculator returns the area, circumference, surface area, and volume. The process for coding any calculator can be broken down into a step-by-step procedure. More ...
Binary Subtraction with Example JavaScript Code
The first step in a binary subtraction is to replace the subtrahend with its 2's complement. But many people do this wrong because they don't understand the importance of magnitude. More ...
Java Script Code to Calculate Speed / Distance of Falling Object
In this article you learn how to use Java Script to perform gravity calculations, elapsed time, distance traveled, instantaneous velocity, how to use the onchange event, how to use radio buttons, and much more. More ...
Introduction to HTML5 Canvas
The canvas element is a webpage container for graphics. You can use JavaScript to draw graphics within the canvas element. Learn how to draw lines, rectangles, circles, and curves, code included. More ...
Easy Fading Text Banner Code
In this article you learn how to create a fading text banner, a fading text banner with several different messages that fade in and out, and a fading image banner with several different image banners that fade in and out. You also learn how to use the document.write method so that you can give a link to others to include your banners in their webpage. More ...
Easy Code for Date Count Down
One of the most powerful incentives for people to make a purchase is scarcity, and one of the most popular ways to create scarcity is have a "limited time" offer. Web pages that present a limited time offer always have a count down timer to let you know how much time is left. More ...
