JavaScript Features

In this JavaScript tutorial, you will learn about features of JavaScript, JavaScript as a programming tool, dynamic effects, browser detection, DOM control and other popular JavaScript features.

A Great Programming Tool for HTML:

Professional Web designers are undoubtedly adept in using HTML and proficient in website design but not necessarily skillful in computer programming. JavaScript is a programming tool for such a situation. JavaScript is a powerful scripting language that helps HTML designers to effectively and interactively design websites and web pages in a very simple and efficient way.

Handles Dynamic Effects:

JavaScript is such a powerful scripting language which has features to achieve dynamic effects in web pages. Using the features available in JavaScript, the designer can decide to have dynamically placed text at run time.

Browser Detection:

One of the powerful feature of JavaScript is its ability to detect client browser. Browser detection feature of JavaScript helps to achieve independent platforms. JavaScript can detect the type of browser the visitor is using and programatically switch the page to show customised pages designed for different browsers. Thus by making use of browser detection feature of JavaScript, the designer gets better control over the browser.

Saves Time:

JavaScript also has the feature of validating data submitted at the client level. This helps in saving the processing time of the server because JavaScript initially creates the validation on the client side.

DOM:

Client side JavaScript is embedded inside HTML This embedded JavaScript is used along with DOM (Document Object Model) for control over the browser by means of objects.

Popular Scripting language:

JavaScript has simple rules and procedures that make it easier to use and learn for programmers. This has made JavaScript a popular client-side scripting language.

Interpreted Language:

It is an interpreted language, meaning that it can be used or executed with ease without pre-compilation.

Visual JavaScript:

Visual JavaScript is a component-based visual development tool for the Netscape Open Network Environment used by programmers who want to build cross-platform web-based applications.

Generators and Iterators:

The newer version of JavaScript features built-in Generators and Iterators.

There are other important features in JavaScript such as variables, arrays, objects, methods, event handlers, etc. which will be explained in detail in the following sections of this tutorial.