JavaScript (JS) id Example: HTML DOM Objects – Anchor Object – JavaScript (JS) id Example
JavaScript (JS) id Example: HTML DOM Objects – Anchor Object – JavaScript (JS) id Example
Purpose: – Illustrates the JavaScript syntax for the Anchor Object id Property .
Prerequistes:
- Install Visual Web Developer 2008
Syntax: object.id=text – Allows you to retrieve or assign id for linked objects.
Restrictions: None
Notes:
- You can build your own library of syntax examples by using same web site over and over and just add new files to it.
Instructions:
- Use Visual Web Developer 2008
- Create new web site;
- Click File/New Web Site
- Select ASP.NET Website Template
- Select C-Sharp for hrefuage
- name of Web Site could be JavaScript_Syntax.
- Add New folder named “HTMLDOMObjects”
- Right-click project name in solution explorer;
- add new folder;
- name of folder should be: HTMLDOMObjects
- Add New subfolder to “HTMLDOMObjects” folder named “DOMAnchor”
- Right-click folder named “HTMLDOMObjects” in solution explorer;
- add new folder;
- name of folder should be: DOMAnchor
- Add New subfolder to “DOMAnchor” subfolder named “AnchorObjectProperties”
- Right-click subfolder named “DOMAnchor” in solution explorer;
- add new folder;
- name of folder should be: AnchorObjectProperties
- Add HTML Page Named id to AnchorObjectProperties subfolder
- Right-click AnchorObjectProperties subfolder;
- add new item;
- Select HTML Page
- HTML Page name should be id
- Click on copy code in code below to copy code into HTML Page id.htm
- Right-click on HTML page id.htm and select view in browser
< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>IdealProgrammer.com: id </title>
<!--
***************************************************
* This example is from http://idealprogrammer.com *
***************************************************
-->
</head>
<body>
<a href="http://www.google.com" id="Google">Google</a><br /><br />
<a href="http://www.yahoo.com" id="Yahoo">Yahoo</a><br /><br />
<a href="http://idealprogrammer.com" id="IdealProgrammer">IdealProgrammer</a><br /><br />
<a href="http://myqol.com" id="ProgressMonitor">ProgressMonitor</a><br /><br />
<script type="text/javascript">
//*****************************************************
// DOM Objects
//*****************************************************
//*****************************************************
// *** Anchor Object Properties ***
//*****************************************************
//*****************************************************
// id
//*****************************************************
// SYNTAX:
// object.id=idname Allows you to retrieve or assign
// id to an object
// Two ways to retrieve id
// 1. GetElementsByTagName
myObject=document.getElementsByTagName('a')[0];
document.write("Google - Using getElementsByTagName : " + myObject.id);
document.write("<br />");
// 2. GetElementById
document.write("Yahoo - Using getElementById: ");
document.write(document.getElementById('Yahoo').id);
document.write("<br /><br />");
// Two ways to assign id
// 1. GetElementById
myThirdElement = document.getElementById('IdealProgrammer');
myThirdElement.id = "New IdealProgrammer";
document.write("<br />IdealProgrammer id changed to New Ideal Programmer: ", myThirdElement.id);
// 2. GetElementsByTagName
myFourthElement = document.getElementsByTagName('a')[3];
myFourthElement.id = "New Progress Monitor";
document.write("<br />ProgressMonitor id changed to New Progress Monitor: ", myFourthElement.id)
</script>
</body>
</html> |
