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This article introduces the knowledge of "what engines are commonly used in javascript". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The commonly used engines in js are: 1, "V8", the engine in Google; 2, "SpiderMonkey", the engine in Firefox; 3, "Chakra", the engine in IE; 4, "ChakraCore", the engine in Edge; 5, "SquirrelFish", the engine in Safari.

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

As a scripting language, JavaScript code cannot be run independently. Usually, we need a browser to run JavaScript code. All Web browsers support JavaScript.

In addition to being executable in the browser, JavaScript code can also be executed on the server or on a device equipped with the JavaScript engine. Browsers can run JavaScript code because the JavaScript engine is embedded in the browser.

The JavaScript engine is a virtual machine that specializes in processing JavaScript scripts, which is usually included in web browsers.

Common JavaScript engines are:

JavaScript engine in V8:Chrome and Opera

JavaScript engine in SpiderMonkey:Firefox

JavaScript engine in Chakra:IE

JavaScript engine in ChakraCore:Microsoft Edge

JavaScript engine in SquirrelFish:Safari.

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