Promise in JS

let myPromise = new Promise(function(myresolve , reject){
let x =0;
if(x==0)
myresolve("OK");
else
reject("Error");

});
myPromise.then(
function (value){
myDisplayer(value);},
function (error){
myDisplayer(error);}
);
function myDisplayer(some){
console.log(some);
}