Having known briefly about the features of Java Script let us start with a lighter section of knowing about how to pace a Java Script within a HTML page, and how to execute this and so on.This can be done by using the area Java Script.
Just like any programming language the variables in Java Script are also used to store values. The value of the variable can be edited as required by the programmer.Some of the rules for forming variable names are as follows: Variable names are case sensitive.They must begin with a letter or the underscore character.Having seen about the simple rules for framing variables names now let us see how to declare a variable name.
Having got a brief introduction about Java Script in the previous chapter let us see the features of Java Script in this section.While designing using HTML the persons doing the designing using HTML need to be a good designer and would generally, need not be a good programmer. So in such situation the Java Script acts as a programming tool and is a powerful scripting language and helps the HTML designers to design the website or webpage effectively and interactively in a very simple and efficient way.
In this Java Script tutorial you will learn about Introduction to Java Script, Origin of Java Script, Need of Java Script, Differences between Java and Java Script and Uses or Advantages of Java Script.Java Script was developed by Netscape by a person named as Brendan Eich. Though it was introduced as a client0side scripting languge and is most geenrally used like that there is no restriction for one using it in server side also. The original name that Java script had when it was intrduced was Livescript.
AJAX (Asynchronous JavaScript and XML) is a JavaScript technique which involves special object XMLHttpRequest and sending/receive asynchronous (without full page reload) requests to server. This is an example of simple AJAX application which allows user to enter web-page url and display title of that page right after user stops typing.
This set of Javascript functions trim or remove whitespace from the ends of strings. These functions can be stand-alone or attached as methods of the String object. They can left trim, right trim, or trim from both sides of the string. Rather than using a clumsy loop, they use simple, elegant regular expressions. The functions are granted to the public domain.
There are many scripts out there that provide customized pop ups for your pages. Rather than trying to supply a one size fits all script this article demonstrates how you can easily write your own popups, giving you complete control over what you show your users.