What is JavaScript ?

  • JavaScript is a high-level, interpreted programming language that is used to create responsive, interactive and dynamic web pages. It is a client-side scripting language, it means that it is executed on the browser rather than on the server.
  • JavaScript add features in web pages like form validation, animations, and updates to content without having to reload the page.
  • It is also used to create web and mobile applications.

Features of JavaScript

  1. Client-side Scripting: JavaScript is a client-side scripting language, that means it runs on the user’s computer rather than the server. This feature makes it faster and more efficient for small tasks.
  2. Interactivity: JavaScript allows developers to create interactive elements on web pages, such as pop-ups, drop-down menus, and sliders
  3. Platform Independent: JavaScript can run on various platforms, including Windows, Mac, Linux, and mobile devices.
  4. Object-oriented Programming: JavaScript is an object-oriented programming language, that means it uses objects and classes to organize code.
  5. Dynamic Content: JavaScript can be used to update content on a web page without reloading the entire page. This makes web applications more fast, responsive and user-friendly.
  6. Allow to add Third-party libraries: JavaScript allows to use many third party libraries such as jQuery and React, which make it easier for developers to create complex web applications.
  7. Error handling feature: JavaScript provide built-in error handling features that help developers identify and fix errors in the code.
  8. Security: JavaScript provide security features to protect website and web application against cross-site scripting (XSS) attacks and other security vulnerabilities.

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