tedwong

var p1 = new Promise((resolve, reject) => { 
  setTimeout(resolve, 2000, "long_execution"); 
}); 

var p2 = new Promise((resolve, reject) => { 
  setTimeout(resolve, 500, "ok"); 
}); 

var p3 = new Promise((resolve, reject) => {
  setTimeout(reject, 1000, "reject");