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 ...
JavaScript Code to Save and Load a Table Using HTML5 Web Storage
HTML5 brings us web storage, providing methods to store keyword/value data pairs in the user's browser. This example gives you JavaScript Code to allow user's to save and load a table using Web Storage. More ...
Calendars for Your Website
I'll start by showing you how to code a basic calendar that shows the current month with the current day highlighted. Then, how to code a webpage that can display several months simultaneously, and finally, a clickable appointments calendar. 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 ...
Where Did the User Click?
This code creates a webpage with an html div containing the words ONE TWo THREE. A Java Script function uses the event object's clientX and clientY properties to determine which word the user clicked on and displays it in a message box. More ...
Regular Expressions Lookarounds
In this article you learn how to match a pattern only when it comes after another pattern (or after not that pattern) or only when it comes before another pattern (or before not that pattern). 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 ...
JavaScript 24-Hour Trainer
JavaScript has matured from making Web pages dynamic to making them interactive, providing users with a rich and memorable Web experience. This unique book-and-DVD package prepares you for the new generation of Web browser changes that are occurring on the ever-evolving Web and shows you how JavaScript is an essential component of those changes. More ...
JavaScript Variable Scope
Understanding variable scope is very important, because if you don't use scope properly, you could end up with unexpected results and a very confusing bug. The scope of a variable refers to the parts of the code from which it's visible. More ...
Regular Expression Basics : How many Matches?
A Regular Expression (regex) is a sequence of characters that define a pattern that allows you to search, match, locate, replace, manipulate, and manage text. In this article you'll learn how to use regular expressions to count the number of matches. More ...
Sams Teach Yourself HTML5 in 10 Minutes
One important part of the new HTML5 specification is the new date-time picker control. In this book you create a webform that uses the new date-time picker control, and you'll also create a small PHP server-side program that displays the value you entered into the date-time picker control when you click the Submit button to show how you can extract data from the control on the server. More ...
What is a Regular Expression?
A Regular Expression (regex) is a sequence of characters that define a pattern that allows you to search, match, locate, replace, manipulate, and manage text. Regular expressions are very powerful, but also difficult to understand and complicated to use. More ...
