JavaScript :
- 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