JavaScript: How to extract source code of all functions in a JavaScript code?

Question

I would like to have a list of functions of a JS code together with the sources for each function. I'm completely new in this area, I found that I need to build AST of the code and traverse it. By searching on the web I found this API, but it only gives me a list of function names, how can I extract the source code of functions?

Answer 1

You can make use of toString() to convert the body of function into string. Try this

function someFunction(){
    var crazyVariable = 10.123123123;
}

someFunction.toString();

it will return you this "function someFunction(){ var crazyVariable = 10.123123123; }"