understanding javascript promise object -

i trying wrap head around promise object in javascript.so here have little piece of code.i have promise object , 2 console.log() on either side of promise object.i thought print

hi

there

zami

but printed

hi  zami  there 

why that.i have 0 understanding on how promise works,but understand how asynchronous callback works in javascript.can 1 shed light on topic?

console.log('hi'); var mypromise = new promise(function (resolve, reject) {     if (true) {         resolve('there!');     } else {         reject('aww, didn\'t work.');     } });  mypromise.then(function (result) {     // resolve callback.     console.log(result);  }, function (result) {     // reject callback.     console.error(result); }); console.log('zami'); 

promise execution asynchronous, means it's executed, program won't wait until it's finished continue rest of code.

basically, code doing following:

1. log 'hi'
2. create promise
3. execute promise
4. log 'zami'
5. promise resolved , logs 'there'.

if want print 'hi there, zami', have

mypromise.then(function (result) {     // resolve callback.     console.log(result);      console.log('zami'); }, function (result) {     // reject callback.     console.error(result); });