jQuery.fn.wait

jquery-fn-wait.js

// jQuery.fn.wait
// Copyright 2015 pengxwang.com
// Released under the MIT license

/*
$.fn.wait = (args...) ->
  d = $.Deferred()
  k = "wait-#{id}-promise"
  p = d.promise()
  if args.length is 1 
    [id] = args
    d.resolve() and @.data(k, p) if not @.data(k)?
    @.data(k)
  else
    [ms, id] = args
    setTimeout d.resolve.bind(d), ms
    @.data "wait-#{id}-promise", p
    p
*/

var __slice = [].slice;

$.fn.wait = function() {
  var args, d, id, k, ms, p;
  args = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
  d = $.Deferred();
  k = "wait-" + id + "-promise";
  p = d.promise();
  if (args.length === 1) {
    id = args[0];
    if (this.data(k) == null) {
      d.resolve() && this.data(k, p);
    }
    return this.data(k);
  } else {
    ms = args[0], id = args[1];
    setTimeout(d.resolve.bind(d), ms);
    this.data("wait-" + id + "-promise", p);
    return p;
  }
};