Purpose & Advantages

JavaScript was initially created to fulfill the following requirements :

• Must be able to assemble components like plug-ins and images in web pages.

• Must be a lightweight scripting language.

• Must run in the browser environment itself and the code included in the markup of the website.

• Must complement Java.

• Easy to learn and use by web developers and amateur programmers.

However over subsequent versions, JavaScript was able to do more than assemble components on web pages. Later versions of JavaScript included capabilities such as event driven programming which basically meant that the user was able to interact with the web page. This made way for Web 2.0 where websites were able to interact with the user and able to generate content based on user driven events or actions unlike the Web 1.0 where static content was served and the user was only able to read it.

Even further improvements meant that JS was able to handle server-side scripts and computing and also used in developing native and stand-alone applications instead of being only restricted to the browser environment. Also JacvaScript has a relatively high speed of execution though not as fast as C or Rust.