This code snippet will default console.log. It will print method name with message

Overrideconsole.js

var console=(function(oldCons){
    return {
        log: function(){
            oldCons.log('%c' + "[ " + arguments.callee.caller.name + " method ]", 'background: #222; color: #bada55', arguments[0]);
        }
    };
}(window.console));

window.console = console;

var hello = function() {
  console.log("Hello Pankaj")
}

var hi = function() {
  console.log("hi Pankaj")
}

var usingObject = {
    objectMethod : function(){
      console.log("objectMethod");
    }
}

var factory = function() {
  return {
    factoryMethod : function(){
      console.log("factoryMethod");
    } 
  }
}

hello();
hi();
usingObject.objectMethod();
factory().factoryMethod();