jquery.async

add utilities function to control async flow in jquery

Usage

<script src="path/jquery.js"></script>
<script src="path/jquery.async.js"></script>

API

$.series([deferreds], [initialValue])

Run deferreds collection of functions in series, each function consumes the return value of the previous function

$.series(() => {
  return fetchUrl('defer1.json');
}, (result) => {
  return { name: 'i am pure function' };
}, (result) => {
  return fetchUrl('defer2.json');
}).then((result) => {
  // do something
});

$.parallel(...deferreds)

Run deferreds collection of functions in parallel, and return a promise that is fulfilled when all the items in the array are fulfilled

$.parallel(() => {
  return fetchUrl('defer1.json');
}, fetchUrl('defer2.json'), ['one', 'two']).then((v1, v2, v3) => {
  ...
});

$.promisify(value)

Return a promise that will wrap the given value

$.promisify(1).then(function(data) {
  console.log(data); // output: 1
});

$.asyncEach(coll, iteratee)

Iterate over an array, with given iteratee function return 循环数组进行函数调用处理，返回各自调用结果

$.asyncEach([1, 2, 3], function(item, coll) {
  var defer = $.Deferred();
  setTimeout(function() {
    defer.resolve(item + 1);
  }, 100);
  return defer.promise();
}).then(function(data) {
  console.log(data); //output: 2, 3, 4
});

$.polling(func, wait)

According to wait time polling implement the given func function

var polling = $.polling(function() {
  console.log('polling');
}, 1000);
// start polling
polling.start();
// stop polling
polling.stop();
// polling times
polling.times();

Changelog