JSON.parse用什么编写/它是开源的吗? [英] What is JSON.parse written in / Is it open source?

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PHP函数是用C编写的，您可以根据需要查看源代码.例如这里- session_start源

PHP funcitons are written in C and you can look at the source code if you like. For example here - session_start source

Javascript呢? JSON.parse之类的函数是如何实现的?我在哪里可以查看源代码?

What about with Javascript? How are functions like JSON.parse implemented? Where can I go to view the source?

谢谢！

JSON.parse是本机的.这意味着它是在浏览器中定义的，该方法的实现是特定于浏览器实现的.

JSON.parse is native. That means it's defined in the browser, the implementation of the method is browser implementation specific.

v8 (Chrome) has a C++ method for JsonParser::ParseJson

spidermonkey(Firefox)具有 js_json_parse

spidermonkey (Firefox) has a C++ function for js_json_parse

JavaScriptCore(Webkit/Safari)具有用于 JSONProtoFuncParse

JavaScriptCore (Webkit / Safari) has a C++ function for JSONProtoFuncParse

Rhino(Mozilla)具有Java方法，用于 parseValue

Rhino (Mozilla) has a Java method for parseValue

Opera和IE实现是封闭源代码.我还认为Nitro的实现也是封闭源代码.

the Opera and IE implementations are closed source. I also think Nitro's implementation is closed source aswell.

请注意，还有许多其他JavaScript引擎.

Note there are many other JavaScript engines.

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