What & Where is Javascript Used for


About Javascript in General

In the present scenario, there are thousands of programming languages which produce and design websites, blogs and their content and almost each and every part of what we read online. Sharing a similar streak with wider known languages like C, C++, Java and Python, is another scripting language sharing its namesake with Java called JavaScript. It is claimed that for marketing purposes, the inventor of this language, Brendan Eich was ordered to give it a name similar to that of Java.

There is a striking different between both which many software amateurs seem to overlook initially. Whereas Java is a fundamental programming language, JavaScript (as the name suggests) is a scripting language which tells the browser to carry out a specific function rather than accomplish the task itself. This is what sets it apart from Java.

However, JavaScript is considered to be a much easier language to learn in a fixed span of time due to the fact that it merely commands the browser to function a particular way resulting in less complex lines of code.

Where is JavaScript Used?

Usually, it is used to enhance certain HTML elements of a browser like photographs, layers, images, videos, etc. A regular Mozilla Firefox user would be familiar with this problem. When quite a few windows seem to be functioning simultaneously, a message pops up at the screen addressing the inconvenience caused with one option being,
‘Stop script” and the other being “Continue”. The “script” which is being referred to here is nothing but JavaScript. This is how many browser users are unaware when they accidentally turn off JavaScript when they perceive that it is being misused and makes the site experience rather worse, instead.

What is it used for?

  • It is essentially used to provide a more dynamic look to a site or a blog.
  • One can add animation wherever necessary to attract eyeballs to a specific part of the site or enhance the experience of a visitor to a site which gathers multiple responses by eliminating the need of loading new web pages every time a response is submitted.
  • Furthermore, one can load images, scripts or objects on a web page without reloading the entire page.
  • JavaScript enhances the interaction between a website and its visitor by allowing them to click on elements, images and changing pages conveniently.
  • It also functions to validate text in text boxes to make sure that all mandatory fields have been duly filled by the user. This trait of JavaScript comes in handy when the visitor is supposed to fill a form from the web page.
  • Unlike its older contemporary VBScript which functions only on Internet Explorer browser, JavaScript is supported by several other modern browsers, too.

JavaScript is currently available in 7 distinct versions; the oldest being 1.0 (Netscape 2) and the latest being 2.0 which is currently still under progress monitored by Eich and his team. Higher the versions, more efficient are the features provided by the system.

If you need some examples to look at , browse through Web Education Community Group for a ton of them.

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