measure execution time of function (mini benchmark) in promises in node.js

benchmark_time_with_promise_nodejs_example.js

//perf start
var lastCallName = '';
function timePromise(name) {
  var lastNameToEnd = lastCallName ? lastCallName : '';
  lastCallName = name;

  return function (data) {
    if (lastNameToEnd) console.timeEnd(lastNameToEnd);
    console.time(name);
    return data;
  };
}
//perf end

//your code
do1Promise()
.then(do2Promise)
.then(function(result){return do3Promise(result+1)});


//your code with time of execution
Promise.resolve()
.then(timePromise('do1Promise'))
.then(function(){return do1Promise()})
.then(timePromise('do2Promise'))
.then(do2Promise)
.then(timePromise('do3Promise'))
.then(function(result){return do3Promise(result+1)})
.then(timePromise('end it all')); //todo fix end call