javascript get function body

Question

Hello, I have a function e.g.

var test = function () {alert(1);}

How can I get the body of this function?

I assume that the only way is to parse the result of test.toString() method, but is there any other way? If parsing is the only way, what will be the regex to get to body? (help with the regex is extremly needed, because I am not familiar with them)

Answer 1

"function decompilation" — a process of getting string representation of a Function object.

Function decompilation is generally recommended against, as it is a non-standard part of the language, and as a result, leads to code being non-interoperable and potentially error-prone.

@kangax on comp.lang.javascript

Answer 2

Try this:

/\{(\s*?.*?)*?\}/g.exec(test.toString())[0]

test.toString() will hold your entire declaration.

/{(\s*?.?)?}/g will match everything between your braces