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JavaScript

Updated Articles and Resources

From Stephen Chapman, Former About.com Guide since 2004

Updated Articles and Resources
  • JavaScript Detection of Browser Window Size and Position Created: Monday, January 03, 2005 Updated: Tuesday, September 27, 2011
    Depending on the browser type, screen resolution and other settings, the size of a browser window may vary considerably. The solution? A collection of JavaScript functions that return information a..
  • What Is JavaScript? Created: Monday, January 16, 2006 Updated: Monday, September 26, 2011
    JavaScript is a popular programming language that's built into all the major web browsers and used to make web pages interactive. This article will answer all your basic questions about what JavaSc..
  • JavaScript Fundamentals Created: Friday, August 10, 2007 Updated: Monday, September 26, 2011
    Find out what JavaScript is and how to use it. Find out about JavaScript reserved words and built-in objects in the JavaScript reference. Read reviews of JavaScript books to find out which ones are..
  • JavaScript 101 Created: Thursday, September 02, 2004 Updated: Friday, September 16, 2011
    Want to use JavaScript on your web pages? There are several alternatives.
  • Free JavaScript Download Created: Friday, June 19, 2009 Updated: Friday, September 16, 2011
    You don't have to pay for JavaScript, and you don't have to write it yourself either -- unless you want to. We'll help you understand your options for finding, downloading, and customizing free Jav..
  • Modular JavaScript Library Created: Friday, June 11, 2010 Updated: Tuesday, August 30, 2011
    Have your say on what additional objects should be added to my modular JavaScript library.
  • Modular JavaScript Library Created: Friday, June 11, 2010 Updated: Tuesday, August 30, 2011
    Instead of one huge JavaScript library where you probably will never use half of what it offers, why not use a modular approach where you just include those objects that you actually need.
  • Misusing JavaScript Created: Sunday, December 20, 2009 Updated: Tuesday, August 30, 2011
    There are two ways you can use JavaScript - to make your web page easier to use or to make the page harder to use. What is the worst way that you have seen sites use JavaScript that makes the page ..
  • Five Most Common JavaScript Coding Errors Created: Wednesday, December 28, 2005 Updated: Tuesday, August 30, 2011
    The five worst pieces of code that people use with Javascript and which you ought to avoid.
  • JavaScript Live Created: Friday, April 30, 2010 Updated: Tuesday, August 30, 2011
    Your say about the first SitePoint JavaScript Live interactive tutorial course.
  • JavaScript Live Created: Friday, April 30, 2010 Updated: Tuesday, August 30, 2011
    A review of the first SitePoint JavaScript Live interactive tutorial course.
  • Evolving JavaScript Created: Friday, July 16, 2010 Updated: Tuesday, August 30, 2011
    What JavaScript can and can't do has changed over time. What was best (or only) practice at one time may now be something to avoid.
  • Outdated JavaScript Created: Friday, July 16, 2010 Updated: Tuesday, August 30, 2011
    Have you found a JavaScript that does exactly what you want but which used long outdated code. Tell us so that we can make a more upt to date version of the script.
  • Reader Submissions: Help Others By Providing Your Own JavaScript Examples Created: Sunday, December 26, 2010 Updated: Tuesday, August 30, 2011
    Add your own examples of how to write JavaScript in the best modern unobtrusive way.
  • Reader Stories: How Do You Write JavaScript? Created: Friday, July 30, 2010 Updated: Tuesday, August 30, 2011
    Tell us how you approach writiing JavaScript.
  • JavaScript By Example - Variables Created: Friday, December 10, 2010 Updated: Monday, August 29, 2011
    In this example we look at where and how you should define variables in JavaScript.
  • Javacript Compressor Created: Thursday, June 09, 2005 Updated: Friday, August 19, 2011
    Make your Javascript code smaller and more difficult for others to read by compressing it.
  • JavaScript Unobtrusive Form Processing - A Complete Example Created: Friday, August 12, 2011 Updated: Friday, August 19, 2011
    This is a complete example of all the HTML and JavaScript required to unobtrusively attach JavaScript validations to a form. It also includes the code to validate the HTML 5 required and pattern at..
  • Unobtrusive Form Field Validation Created: Friday, August 19, 2011 Updated: Friday, August 19, 2011
  • JavaScript Tutorials Created: Thursday, August 09, 2007 Updated: Friday, August 12, 2011
    Learn to write your own JavaScript programs from these tutorials.
  • Pattern Matching Created: Friday, August 05, 2011 Updated: Friday, August 12, 2011
    Even though older browsers don't support the HTML5 pattern attribute for form fields we can implement it ourselves in JavaScript.
  • Unobtrusive Form Validation - Required Fields Created: Friday, July 29, 2011 Updated: Friday, August 12, 2011
    Even though older browsers don't support the HTML5 required attribute for form fields we can implement it ourselves in JavaScript.
  • Unobtrusive Error Handling Created: Thursday, July 21, 2011 Updated: Friday, August 12, 2011
    Once our form validation detects an error we need an unobtrusive way to display the error.
  • Individual Field Validations Created: Friday, July 08, 2011 Updated: Friday, August 12, 2011
    When we set up unobtrusive form field validation we can easily share validation between fields that need to validate the same way.
  • Attaching Validation To A Form Created: Friday, July 01, 2011 Updated: Friday, August 12, 2011
    The modern unobtrusive way of attaching JavaScript to validate a form in your web page doesn't require any changes to the HTML of the form.
  • JavaScript Form Processing - A Modern Approach Created: Friday, June 24, 2011 Updated: Friday, August 12, 2011
    Changes to both JavaScript and HTML have affected the way we should be using JavaScript to validate our forms and will affect it further in the future.
  • Javascript Format and Colour Created: Thursday, June 09, 2005 Updated: Friday, August 12, 2011
    Unobfuscate, format, and colour-code a Javascript.
  • Using window.onload Created: Thursday, September 29, 2005 Updated: Tuesday, August 02, 2011
    How to attach onload processing to a page without adding it to the body tag.
  • Cross Browser Search Created: Saturday, January 01, 2011 Updated: Friday, July 15, 2011
    This script will search the web page and highlight matching content in all modern browsers.
  • Variables, Functions, Properties and Methods Created: Friday, July 15, 2011 Updated: Friday, July 15, 2011
    While these four terms have distinct meanings in some languages, things are not as clear cut in JavaScript.
  • Back References Created: Saturday, December 03, 2005 Updated: Friday, July 15, 2011
    Regular Expression back references and capturing groups.
  • JavaScript By Example - Objects: RegExp Created: Thursday, December 30, 2010 Updated: Friday, July 15, 2011
    Regular Expressions provide pattern matching functionality for advanced string manipulation.

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