JavaScipts : Introduction to JavaScripts

INTRODUCTION

JavaScript is an interpreted programming or Script language from Netscape. It is somewhat similar in capability to Microsoft's Visual Studio , Sun's Tcl , the UNIX-derived Perl , and IBM's REXX. In general, script languages are easier and faster to code in than the more structured and compiled languages such as C and C++ . Script languages generally take longer to process than compiled languages, but are very useful for shorter programs.

an object-oriented computer programming language commonly used to create interactive effects .

• Learning the web provides information for beginners and introduces basic concepts of programming and the Internet.
• JavaScript Guide provide an overview about the JavaScript language and its object.
• JavaScript Reference provide detalied reference materiel for JavaScript.
• JavaScript is a core platform , object Oriented reference language.
• JavaScript contain a standard library of object ,such as Array , Date , and month , and a core set of language element such as operators control structure , and statement  .
• We am to provide a "guide language" for a web designers and part time programmers who were building Web content from components such as images, plugins, and Java applets. We saw Java as the “component language” used by higher-priced programmers.

History

JavaScript, not to be confused with Java, was created in 10 days in May 1995 by Brendan Eich, then working at Netscape and now of Mozilla. JavaScript was not always known as JavaScript: the original name was Mocha.

The HTML 2.0 specification was published in November of 1995. Since then, the HTML 3.0 draft specification expired on September 28, 1995, without becoming recommended, but HTML 3.2 became a W3C (World Wide Web Consortium) recommendation on January 14, 1997. The public draft for HTML 4.0 was realeased on July 8, 1997 and was officially recommended by the W3C in December that year. It would be another 17 years before the current HTML5 standard was published in October of 2014.

Advantages

Let’s take a step back and count the merits of JavaScript:

• JavaScript is very easy to implement. All you need to do is put your code in the HTML document and tell the browser that it is JavaScript.
• JavaScript works on web users’ computers — even when they are offline! .
•  JavaScript can load content into the document if and when the user needs it, without reloading the entire page — this is commonly referred to as Ajax.