Get name and line of calling function in node.js

Question

How can one get the name and line of a function that called the current one? I would like to have a rudimentary debugging function like this (with npmlog defining log.

Answer 1

I found and installed the node-stack-trace module (installed with npm install stack-trace), and then defined echo as:

function echo() {
  var args, file, frame, line, method;
  args = 1 <= arguments.length ? __slice.call(arguments, 0) : [];

  frame = stackTrace.get()[1];
  file = path.basename(frame.getFileName());
  line = frame.getLineNumber();
  method = frame.getFunctionName();

  args.unshift("" + file + ":" + line + " in " + method + "()");
  return log.info.apply(log, args); // changed 'debug' to canonical npmlog 'info'
};