blob: 863573fa1ed50def3fa33e139e0de55471b64127 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
define("dojo/promise/first", [
"../_base/array",
"../Deferred",
"../when"
], function(array, Deferred, when){
"use strict";
// module:
// dojo/promise/first
var forEach = array.forEach;
return function first(objectOrArray){
// summary:
// Takes multiple promises and returns a new promise that is fulfilled
// when the first of these promises is fulfilled.
// description:
// Takes multiple promises and returns a new promise that is fulfilled
// when the first of these promises is fulfilled. Canceling the returned
// promise will *not* cancel any passed promises. The promise will be
// fulfilled with the value of the first fulfilled promise.
// objectOrArray: Object|Array?
// The promises are taken from the array or object values. If no value
// is passed, the returned promise is resolved with an undefined value.
// returns: dojo/promise/Promise
var array;
if(objectOrArray instanceof Array){
array = objectOrArray;
}else if(objectOrArray && typeof objectOrArray === "object"){
array = [];
for(var key in objectOrArray){
if(Object.hasOwnProperty.call(objectOrArray, key)){
array.push(objectOrArray[key]);
}
}
}
if(!array || !array.length){
return new Deferred().resolve();
}
var deferred = new Deferred();
forEach(array, function(valueOrPromise){
when(valueOrPromise, deferred.resolve, deferred.reject);
});
return deferred.promise; // dojo/promise/Promise
};
});
|
