What browser JavaScript

JavaScript is a popular programming language that is widely used in the development of websites and applications. When visiting a website, we often see a prompt asking us to enable JavaScript. So, which browsers support JavaScript? In this article, we will learn about the relationship between JavaScript and browsers and the extent of JavaScript support in different browsers.

What is JavaScript?

JavaScript is a scripting language used along with HTML and CSS for the development and design of websites. It is an interpreted language that can be embedded directly into web pages to make user interfaces more interactive and engaging.

JavaScript can dynamically modify HTML and CSS and interact with the server. It can also be used to create interactive user interface elements such as drop-down menus, pop-ups, carousels, and form validation.

While JavaScript code is usually embedded in HTML files, it can also be referenced through external JavaScript files (usually with a .js extension).

The relationship between browsers and JavaScript

A browser is a program used on your computer to browse websites and the Internet. The browser's job is to read HTML, CSS, and JavaScript code and convert them into visual pages.

The browser is integrated with a JavaScript interpreter for executing JavaScript code. Each browser uses a different JavaScript interpreter and therefore has different levels of support for JavaScript.

JavaScript is a client-side programming language used to implement browser functionality, including website interaction, dynamic loading, and form validation. Normally, JavaScript code only runs on the client side when visiting a website.

Browser support for JavaScript

Different browsers have different support for JavaScript. The following is the degree of support for JavaScript by various browsers:

1. Google Chrome

Google Chrome is one of the most popular browsers and the first to support JavaScript. One of the browsers. It uses a JavaScript interpreter called V8 to quickly execute JavaScript code.

Google Chrome supports the latest version of the JavaScript standard and supports ECMAScript2019, which was released in 2019. Additionally, it supports ES6, ECMAScript2015 and other key technologies such as Web Audio API and WebGL.

2. Mozilla Firefox

Mozilla Firefox is another popular browser and supports JavaScript. Firefox uses a JavaScript engine called SpiderMonkey, which has performance comparable to Chrome's V8 engine.

Firefox supports the latest versions of JavaScript standards and has high compatibility with new JavaScript technologies, such as WebAssembly, which allows native code to be run in the browser.

3. Microsoft Edge

Microsoft Edge is a new generation browser developed by Microsoft that supports the latest version of the JavaScript standard. It uses a JavaScript engine called Chakra that has surpassed earlier versions of Internet Explorer.

4. Safari

Safari is a browser developed by Apple that uses a JavaScript engine called JavaScriptCore, also known as Nitro. It supports the latest JavaScript standards, including new technologies such as ES6 and WebRTC.

5. Internet Explorer

Internet Explorer is one of the early browsers released by Microsoft and has been replaced by Microsoft Edge. Internet Explorer has relatively low JavaScript support and cannot support the latest ECMAScript standard and most new technologies.

Summary

JavaScript is a popular programming language used for website and application development. Different browsers support JavaScript to varying degrees. Currently, most modern browsers support the latest JavaScript standards and technologies. Therefore, using the latest version of your browser is one of the keys to ensuring your web application works optimally.

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