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Preview: About.com JavaScript: Most Popular Articles

About.com JavaScript: Most Popular Articles



These articles are the most popular over the last month.



Published: Sat, 21 Jan 2017 11:30:03 +0000

 



Are JavaScript and Java the Same Language?

2017-01-21T11:30:03Z

What is JavaScript? It's a popular programming language. This article will answer all your basic questions about what JavaScript is and how to use it.



Everything You Need to Learn JavaScript

2017-01-21T11:30:03Z

Want to use JavaScript on your web pages? There are several alternatives.



What is JavaScript Used For?

2017-01-21T11:30:03Z

What is JavaScript used for? Just where does JavaScript fit into the overall picture when it comes to building web pages correctly? Learn more.



Find When a Web Page Was Last Updated with This...

2017-01-21T11:30:03Z

Want to know when a web page you're on was last updated? Here's a JavaScript command you can use in your browser to display its last modified date.



Analysis Quiz

2017-01-21T11:30:03Z

Use this quiz-maker script to write an analysis quiz with valued answers for your website.



Looking to Download JavaScript Snippets? Here's...

2017-01-21T11:30:03Z

You don't have to pay for JavaScript, and you don't have to write it yourself either -- unless you want to. Find out about free JavaScript downloads.



Why JavaScript

2017-01-21T11:30:03Z

How should you use JavaScript so that it enhances your site.



What Does JavaScript Look Like?

2017-01-21T11:30:03Z

Once advantage to JavaScript is that it is actually downloaded to the local computer before it is interpreted by the browser. This means you can view the source to see the JavaScript. You just need to be able to tell what parts of the page content are JavaScript and what are HTML and CSS.



Here's How to Convert Numbers into Words with...

2017-01-21T11:30:03Z

It's easy to show the results of calculations as numbers, but converting numbers into word form is more complex. This JavaScript let you do this.






A Brief History of Javascript

2017-01-21T11:30:03Z

What is Javascript, who created it, and who controls the standards?



Create More Concise Code by Nesting If/Else...

2017-01-21T11:30:03Z

You can nest one IF statement inside another using JavaScript.



Here's What JavaScript CAN'T Do

2017-01-21T11:30:03Z

There are a few things that the JavaScript programming language does not let you do



Two Types of JavaScript

2017-01-21T11:30:03Z

Some JavaScript code just makes your page look a little nicer and more interactive. Other JavaScript provides more essential functionality.



The Effort in Learning JavaScript Will Differ...

2017-01-21T11:30:03Z

JavaScript is a good first language to learn, but the learning curve will be affected by several factors, including any languages you already know.



Tools for Making JavaScript

2017-01-21T11:30:03Z

What tools do you need to write JavaScript?



What's In a Name? Understanding \$ and _ in...

2017-01-21T11:30:03Z

The $ and _ characters in JavaScript are identifiers that are considered to be letters rather than special characters.



Final Javascript Quiz

2017-01-21T11:30:03Z

Test your knowledge of Javascript with this 50 question quiz.



Design Your Web Page With an Understanding of...

2017-01-21T11:30:03Z

What order does JavaScript run its code in?



Here's How to Add a Print Button to Your Web Page

2017-01-21T11:30:03Z

Here are simple code additions you can use to insert a print button or a print link to your web page, and define what content will be printed.



JavaScript and JScript : What's the Difference?

2017-01-21T11:30:03Z

JavaScript and JScript, different languages for different browsers.



Getting Rid of document.write

2017-01-21T11:30:03Z

The document.write statement was an essential part of early JavaScripts but is now completely unnecessary as anything that can be done with document.write can be done better using innerHTML.



Object Oriented JavaScript

2017-01-21T11:30:03Z

Why should use use an object oriented approach to JavaScript? Here are some reasons.



href="#"

2017-01-21T11:30:03Z

A # by itself in the href attribute is not valid. Sites teaching you how to write HTML and JavaScript use it as a placeholder that should be replaced in live code with a real destination.



Improve Your Web Page by Moving JavaScript to...

2017-01-21T11:30:03Z

You don't have to code JavaScript into your web page's HTML document. For efficient JavaScript, move it to an external file and link to it instead.



Bulletin Board / Forum Code Converter ...

2017-01-21T11:30:03Z

Convert your pre-prepared forum entries between text, HTML, and bbCode with this script.






How to Add Radio Buttons to a Web Page

2017-01-21T11:30:03Z

Everything you need to know about radio button creation, including grouping buttons, associating text with each button and validating user selections.



Add Continuously Scrolling Images to Your...

2017-01-21T11:30:03Z

This script allows you to display horizontal marquees of continuous scrolling images without a break except when the mouse is moved over them.



Why Return A Value

2017-01-21T11:30:03Z

Many web pages describe how to return a value from a function in JavaScript. This page explains why you should want to do so for most of your functions.



Understanding 'Switch' Statements in Javascript

2017-01-21T11:30:03Z

This example shows how to use a JavaScript switch statement to provide more than two alternative paths.



An Effective Shortcut Using the "Ternary"...

2017-01-21T11:30:03Z

The ternary operator provides a shortcut when writing if/then statements, but its use also may impact code readability.



The Scope of Variables

2017-01-21T11:30:03Z

JavaScript variables have a different scope from what you would expect from other programming languages.



How to Use 'GET' and 'POST' for Server Requests...

2017-01-21T11:30:03Z

When should you use GET and when should you use POST with Ajax.



Use This JavaScript Code to Scroll Text on Your...

2017-01-21T11:30:03Z

This JavaScript allows you to display one or more marquees containing text that will scroll continuously except when the mouse is moved over them.



Learn to Target a Window or Frame Using...

2017-01-21T11:30:03Z

Learn how to use top.location.href in JavaScript, plus coding in HTML, to target links so that they open in a new window or frame.



Server Side Scripting

2017-01-21T11:30:03Z







JavaScript for Beginners

2017-01-21T11:30:03Z

Before beginners to JavaScript can start writing their own scripts they first need to understand some of the basic terminology and concepts.



AJAX: to Asynchronous or Synchronous?

2017-01-21T11:30:03Z

When should you use asynchronous AJAX calls and when should you use synchronous.



The JavaScript Modulo Bug

2017-01-21T11:30:03Z

The modulo operator in JavaScript does not return the correct value for negative numbers.



Floating Point and JavaScript

2017-01-21T11:30:03Z

JavaScript doesn't always give you the exact answer you expect when you start using decimals. Here's Why.



Do This Instead of Updating Global Variables in...

2017-01-21T11:30:03Z

As well as being able to pass parameters to a function in JavaScript, we can also return a value from the function. Get a tutorial on how to do this.



Daylight Saving Time

2017-01-21T11:30:03Z

How to add methods to the JavaScript Date object that allow you to determine if your visitor is on daylight saving time.



Google Maps - Satellite Images

2017-01-21T11:30:03Z

How to create and use Google Maps.



Using JavaScript to Disable Right Clicks, and...

2017-01-21T11:30:03Z

You can disable access to the right-click context menu on your website with this JavaScript, but it may annoy your visitors, and it can be thwarted.



Countdown Timer

2017-01-21T11:30:03Z

Provides a countdown to a given date and time.



Writing Cookies

2017-01-21T11:30:03Z

How to write a cookie with Javascript.



Javascript and XHTML

2017-01-21T11:30:03Z

How to put a Javascript on an XHTML page so that it will pass validation.



Long

2017-01-21T11:30:03Z

JavaScript Glossary definition for: Long



Using window.onload

2017-01-21T11:30:03Z

How to attach onload processing to a page without adding it to the body tag.



The Bad Parts of JavaScript

2017-01-21T11:30:03Z

There are some constructs allowed in JavaScript where you just make things more difficult for yourself if you use them.



Random Array Sort

2017-01-21T11:30:03Z

How to 'sort' an array in random order.



JavaScript By Example

2017-01-21T11:30:03Z

Br having your function return an object you can pass back as much information as you like by giving the object multiple properties.



Use This JavaScript Code to Add a Memory Game...

2017-01-21T11:30:03Z

Test your website visitors' memory skills by adding the memory game known as Concentration to your web page using this simple JavaScript code.



How to Split Webpage JavaScript into Separate...

2017-01-21T11:30:03Z

When you first write a new JavaScript the easiest way to set it up is to embed the JavaScript code directly into the web page.



Modal Windows

2017-01-21T11:30:03Z

How to make a window maintain the focus in those browsers that support it.



How to Identify and Fix Common Javascript Errors

2017-01-21T11:30:03Z

Mind you brackets and avoid this common javascript error.



How to use script tags to link to external...

2017-01-21T11:30:03Z

To link to external JavaScript, use Script tags. These attributes will attach another JavaScript to the page, allowing further JavaScript code to run.



Block Exit Blockers User Script

2017-01-21T11:30:03Z

Block onbeforeunload to stop web pages using exit blockers.



Credit Card Validation

2017-01-21T11:30:03Z

Validate credit card numbers in forms with this Javascript routine for validating the length and check digits.



Week of Year Date Method

2017-01-21T11:30:03Z

How to add a method to Javascript dates that allows you to get the week number.



How to Write a Session Cookie in Javascript

2017-01-21T11:30:03Z

Web browsers distinguish between three different types of cookies. These types are session cookies, first party cookies, and third party cookies.



The Three Parts of JavaScript

2017-01-21T11:30:03Z

Javascript and JScript each have the same three parts in their specifications.



Reserved Words

2017-01-21T11:30:03Z

A list of Javascript reserved words and other words with special meanings.



Hello World

2017-01-21T11:30:03Z

Start writing your own JavaScripts



What Version of Javascript

2017-01-21T11:30:03Z

Determining which version of Javascript is supported by a browser.



Hiding Your Email Address

2017-01-21T11:30:03Z

Conceal your email addressfrom spam spiders.






Javascript Format and Colour

2017-01-21T11:30:03Z

Unobfuscate, format, and colour-code a Javascript.



Password Generator

2017-01-21T11:30:03Z

Create your own secure passwords that meet certain length and content requirements.



setTimeout or setInterval

2017-01-21T11:30:03Z

What is the difference between setTimeout and setInterval?



HTML 5 And noscript

2017-01-21T11:30:03Z

HTML 5 proposes changing where the noscript tag can be used so as to reintroduce a use for it.



Using Increment and Decrement Operators in...

2017-01-21T11:30:03Z

For those new to programming the difference between ++i and i++ is not obvious. Here's a simple example to explain the difference.



JavaScript Functions

2017-01-21T11:30:03Z

There is a selection of open source javaScript libraries that you can use as the basis for the JavaScript in your page.



Why You Shouldn't Use JavaScript in Emails

2017-01-21T11:30:03Z

Why not to use JavaScript with emails? Well there are some good reasons why JavaScript and Emails don't go together.



JavaScript Form Processing

2017-01-21T11:30:03Z

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.



Table Generator

2017-01-21T11:30:03Z

Generate all of the tags for a complete table with this form.



Print Directly to Printer With JavaScript Not...

2017-01-21T11:30:03Z

An explanation of some of the reasons why Javascript can't print a page without the print dialog popping up.



Referring Site

2017-01-21T11:30:03Z

How to determine which site your visitor was last on.



Add or Subtract Business Days

2017-01-21T11:30:03Z

How to add a method to Javascript dates that allows you to add or subtract business days from a date.



Day of Year Date Method

2017-01-21T11:30:03Z

How to add a method to Javascript dates that allows you to get the day of the year.



Deleting Cookies

2017-01-21T11:30:03Z

How to delete a cookie with Javascript.



Counting Words

2017-01-21T11:30:03Z

How to use Javascript to count the number of words that have been entered into a text area.



menubar

2017-01-21T11:30:03Z

JavaScript Glossary definition for: menubar



Modern Combo Boxes

2017-01-21T11:30:03Z

HTML doesn't have a tag to produce a combo box but we can use JavaScript to create our own.



Calculator Tutorial

2017-01-21T11:30:03Z

A series of tutorials explaining one way to use Javascript to create a calculator.



Function to Read Parameters Passed Via Q...

2017-01-21T11:30:03Z

How to pass parameters between pages using query strings.



Passing Parameters Via Query Strings ...

2017-01-21T11:30:03Z

How to pass parameters between pages using query strings.



JavaScript Library or Code Yourself

2017-01-21T11:30:03Z

Should you use a JavaScript library or write all the code yourself. Both ways have advantages and disadvantages.



Copy and Paste

2017-01-21T11:30:03Z

How to copy and paste Javascripts.



5 Remarkably Good Reasons to Avoid 'Noscript'...

2017-01-21T11:30:03Z

The noscript tag is long past its use by date. Using JavaScript and the DOM gives much better control.



HTML and the DOM

2017-01-21T11:30:03Z

You need to understand how the Document Object Model relates to your HTML source if you expect JavaScript to update the web page correctly.



HTML in Javascript

2017-01-21T11:30:03Z

A simple form that will convert HTML source code into Javascript.



Calendar Generator

2017-01-21T11:30:03Z

Create the HTML code for a calendar to add to your page



Testing JavaScript

2017-01-21T11:30:03Z

There is only one way to find out if a script you have written will work properly. You test the script to see if it produces the expected results for a variety of alternative situations.



Choosing Pre-Built Scripts

2017-01-21T11:30:03Z

Easy tests to determine if pre-built scripts have been properly tested by their author



Use responseText and responseXML

2017-01-21T11:30:03Z

Using responseText and responseXML determines if the server responses in AJAX are in XML or plain text. The field in which the response is returned depends upon what format is being used.



Converting IP Addresses

2017-01-21T11:30:03Z

Convert easily betweeen IP address formats with JavaScript.



A Quick Guide to Using Child Nodes in Java

2017-01-21T11:30:03Z

The property allowing us to access the nodes contained within the current node is actually a nodelist since a node can of course contain more than one node.