• JavaScript is used to create client-side dynamic pages.
• JavaScript (js) is a light-weight object-oriented programming language.
• JavaScript is not a compiled language, but it is a translated language.
• The JavaScript Translator (embedded in the browser) is responsible for translating the JavaScript code for the web browser.
•  JavaScript, users can build modern web applications to interact directly without reloading the page every time.
• databases such as CouchDB and MongoDB uses JavaScript as their scripting and query language.

Features of JavaScript :

There are following features of js :-

• Object-Centered Script Language
• Light Weight and delicate
• Interpreted language
• Case Sensitive format/language
• Ability to perform In Built Function
• Statements Looping
• Client edge Technology
• Validation of User’s Input
• Else and If Statement
• It uses prototypes rather than using classes for inheritance.
• It is supportable in several operating systems including, Windows, macOS, etc.
• It provides good control to the users over the web browsers.

Application of JavaScript

JavaScript is used to create interactive websites. It is mainly used for:

• Client-side validation
• Manipulating HTML Pages
• User Notifications
• Dynamic drop-down menus
• Displaying date and time
• Displaying pop-up windows 
• Alert dialog box
• Confirm dialog box
• Prompt dialog box
• Back-end Data Loading
• Presentations
• Server Applications
• Displaying clocks etc.

JavaScript Example :

Output :-

Welcome to JavaScript

Hello JavaScript by JavaScript

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