Little stacktrace code, can be implemented in your code to debug which functions are called, from where. Implemented in NodeJS. Easy to use!

debug-node.js

/* LITTLE CODE DEBUGGER, call it with : console.log(__debug); */
Object.defineProperty(global, '__stack', {  get: function() { var orig = Error.prepareStackTrace; Error.prepareStackTrace = function(_, stack) { return stack; }; var err = new Error; Error.captureStackTrace(err, arguments.callee); var stack = err.stack; Error.prepareStackTrace = orig; return stack; }});
Object.defineProperty(global, '__debug', {	get: function(){ return "[+] Called (" + __stack[1].getLineNumber() + ' : ' + __stack[1].getFunctionName() + ") From ("+ __stack[2].getLineNumber() + ' : ' + __stack[2].getFunctionName() + ")"; }});
/* END DEBUG */

/* HOW TO USE
  This can be traced, using 
    console.log(__debug);
    
  In your console you will see lines like these: 
  [+] Called (55 : exports.getTables) From (63 : null)
  [+] Called (20 : doQuery) From (56 : exports.getTables)

  This states what function is called and from which function it is called ( linenumber : functionname )
  Easy to use, works even in callbacks 
*/