Netscape Communications Corporation, and Mozilla Foundation.
It can be set to execute when something happens on the website, like when a page has finished loading or when a user clicks on a button.
You can put it on a HTML, you can place your code in either the head section, or the body section of your HTML page. Programs such as Notepad ++, Adobe Dreamweaver will work.
By opening a browser.
8. What is a variable? How is it different to a value?
Variable is a storage location and an associated symbolic name (an identifier) which contains some known or unknown quantity or information, which is the value. THe difference is that variable is the storage. and value is the quantity of information that the variable contains.
It is String, Number, Boolean, Array, Object, Null, and Undefined.
// Write to a heading:
document.getElementById(“myH1″).innerHTML=”Welcome to my Homepage”;
// Write to a paragraph:
document.getElementById(“myP”).innerHTML=”This is my first paragraph.”;
Web Sources Link: