V8-callsites NPM

v8-callsites

install

npm install --save v8-callsites

usage

var stack = require('v8-callsites');

origin();

function origin(){
  foo();
}

function foo(){
  bar();
}

function bar(){
  baz();
}

function baz(){

  var barStackFrombaz = stack(3, bar);
  // bar `stack` from baz with only 3 frames

  barstackFrombaz.forEach(function(frame){
    console.log(
      frame.getFunctionName(), '->', frame+''
    );
  });
}

documentation

require('v8-callsites')([frames, origin])

frames if specified should be an integer bigger than 0 or Infinity.
origin if specified should be a function.
if no arguments, the default number of frames is 2 so the origin is the module itself. The returned stack is sliced by one.

See also the avaliable methods of the stack trace api like:

getLineNumber
getFileName
getEvalOrigin
etc.

why

You would like to set how many frames are recorded (Error.stackTraceLimit) and from which function the stack should be traced back (Error.captureStackTrace).

By default two frames are recorded, though you can even lower it to one providing a function from which start.