profilejs

gistfile1.js

function profile(methods, ctx) {
  ctx = ctx || this;
  for (var i = 0, l = methods.length; i < l; i++) {
    (function(name) {
      var method = ctx[name];
      ctx[name] = function () {
        console.time(name);
        method.apply(this, arguments);
        console.timeEnd(name);
      }
    })(methods[i]);
  }
}

// example

var obj = {
  test1: function (name) {
    console.log('test1 ' + name);
  },
  test2: function () {
    console.log('test2');
  }
};

profile(["test1", "test2"], obj);

obj.test1("hello");
obj.test2();

//test1 hello
//test1: 10ms
//test2
//test2: 1ms