To let users know about non-JavaScript web browsers, use the tag. The HTML tag is used to handle the browsers, which do recognize tag but do not support scripting. This tag is used to display alternate text messageHere’s an example,           HTML noscript Tag                                              Your browser does not support JavaScript!          

This tutorial will teach you how to disable JavaScript in the Opera web browser. The latest version as used in this tutorial is Version− 89.0.4447.71. About JavaScript The dynamic programming language JavaScript, also known as ECMAScript, was created to provide control over the components of a web application. Your browser loads something on a website known as the Document Object Model (DOM), and JavaScript may work with the items in the DOM to, for example, make a web application responsive to the user. JavaScript is responsible for the existence of every animated menu system, any web form validation or submission, ... Read More

You will learn how to activate JavaScript in the Opera web browser in this tutorial. Version− 89.0.4447.71 is the most recent version of Opera used in this tutorial. About JavaScript Although it is most famous for being the scripting language for Web pages, JavaScript (commonly abbreviated as JS) is a lightweight, interpreted, object-oriented language with first-class functions that are also utilized in other non-browser applications. It is a dynamic, prototype-based multi-paradigm scripting language that supports imperative, functional, and object-oriented programming paradigmsx JavaScript, which operates on the client side of the web, may be used to plan or program how web ... Read More

The Mozilla Foundation and its affiliate, the Mozilla Corporation, developed the extensible, free and open-source web browser known as Firefox. It displays web pages using the Gecko rendering engine, which incorporates up-to-date and future web standards. Under the code name Quantum, Firefox started implementing new technologies in 2017 to support parallelism and a more user-friendly UI. Windows 7 and later versions, macOS, and Linux all support Firefox. A variety of UNIX and Unix-like operating systems, including FreeBSD, OpenBSD, NetBSD, illumos, and Solaris Unix, have unofficial ports available. Additionally, iOS and Android are supported. The iOS version, like all other iOS ... Read More

A cross-platform web browser made and developed by Microsoft is called Edge. After being available on various platforms, including Android and iOS in 2017, macOS and earlier Windows versions (Windows 7 and later) in 2019, and Linux in 2020, it was originally packaged with Windows 10 and Xbox One in 2015. Internet Explorer (IE) was replaced as the default web browser in Windows 11 by the Chromium-based Edge (for compatibility with Google Chrome). The original purpose of JavaScript was to "bring online pages alive". Scripts are what this language refers to as programs. They can be included directly in the ... Read More

To disable JavaScript in Internet Explorer (IE), follow the below-given steps:Click the gear icon on the right-hand side:Now, a dialog box will open. Go to Security tab and click Custom level.After reaching the Security Settings, go to Scripting, then Active Scripting.Click Disable to disable JavaScript and press Ok.Now, JavaScript will disable after clicking Ok.

To enable JavaScript in Internet Explorer (IE), follow the below-given steps: Opening Internet Options Click the gear icon on the right-hand side: Navigating to Security Settings Now, a dialog box will open. Go to the Security tab and click Custom level. After reaching the Security Settings, go to Scripting, then Active Scripting. Enabling Active Scripting Click Enable to enable JavaScript and press Ok. Now, JavaScript will enable after clicking Ok.  Conclusion Once you enable Active Scripting and save the changes, JavaScript will be activated in Internet Explorer. Restarting the browser may be required for the settings to take effect.

The language attribute in JavaScript is optional since the introduction of HTML5 brought some new improvements. JavaScript became the default language for HTML5 and modern browsers. Therefore, now adding javascript isn’t required in tag.This attribute specifies what scripting language you are using. Typically, its value will be javascript. Although recent versions of HTML (and XHTML, its successor) have phased out the use of this attribute.Here you can see how it is used:                              

The type attribute in JavaScript is optional since the introduction of HTML5 brought some new improvements. JavaScript became the default language for HTML5 and modern browsers. So, now adding text/javascript isn’t required in tag. This attribute is what is now recommended to indicate the scripting language in use and its value should be set to "text/javascript". Example Here you can see how it is used: Output

To use case-insensitive switch-case in JavaScript, make the input all upper or all lowercase.ExampleYou can try to run the following code to learn how to use a case-insensitive switch:           JavaScript Strings                      var str = "amit";          str = str.toUpperCase();          switch (str) {             case 'AMIT': document.write("The name is AMIT ");             break;             case 'JOHN': document.write("The name is JOHN ");             break;             default: document.write("Unknown name")          }          document.write("Exiting switch block");