Jquery

1. How to create Promise

var promise=promiseTest(mydata);
promise.done(function (data){})

function promiseTest(mydata){
	var senddata={teamdata:JSON.stringify(mydata)};
		return $.post("url",senddata);
}

2. How to use Promise all 
	let promises = [];
   for(var i=0;i<10;i++){
      var promise=promiseTest(mydata);
      promises.push(promise)
   }
   Promise.all(promises).then(() => {}).catch(error => { });
   
   
function promiseTest(mydata){
	var senddata={teamdata:JSON.stringify(mydata)};
		return $.post("url",senddata);
}


3. Promise All with skipping one error as normmally in Promise All if one request fail it will not called then function

let promises = [];
   for(var i=0;i<10;i++){
      var promise=promiseTest(mydata);
      promises.push(promise)
   }
   Promise.all(promises.map(p => p.catch(error => { console.log(error); return null; }))).then(() => {}).catch(error => { });
   
   
function promiseTest(mydata){
	var senddata={teamdata:JSON.stringify(mydata)};
		return $.post("url",senddata);
}

4. my jquery deffered object 

	var looper = $.Deferred().resolve();


$.get("get_pipeline_list",function(data){
				console.log(data);
				  var sequence = Promise.resolve();
				
				$.when.apply($, $.map(data, function(item, i) {
					  looper = looper.then(function() {
					    // trigger ajax call with item data
					    return getPromise(i);
					  });

					  return looper;
					})).then(function() {
					  // run this after all ajax calls have completed
					  console.log('Done!');
					});
			});
			
			
			function getPromise(id){
		    var deferred = $.Deferred();

			 $.get("timeout?id="+id,function (data){
			        deferred.resolve(data);

				 console.log(data)}).fail(function (){
				        deferred.reject(error);

			 });
			 
			    return deferred.promise();

		}