Created
March 12, 2012 17:03
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RxJS TestBed for forkJoin
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<!doctype html> | |
<html> | |
<head> | |
<meta charset=utf-8> | |
<title>RxJS TestBed</title> | |
<script type="text/javascript" src="rx.js"></script> | |
<script type="text/javascript" src="rx.aggregates.js"></script> | |
<script type="text/javascript"> | |
window.onload = function () { | |
Rx.Observable.forkJoin = function (sources) { | |
return Rx.Observable.fromArray(sources) | |
.select(function(o, i) { | |
return o.takeLast(1).select(function(value) { return { i: i, value: value }; }); | |
}) | |
.mergeObservable() | |
.aggregate({ array: [], count: 0 }, function(results, result) { | |
results.array[result.i] = result.value; | |
return { | |
array: results.array, | |
count: results.count + 1 | |
}; | |
}) | |
.where(function(results) { return results.count === sources.length; }) | |
.select(function(results) { return results.array; }); | |
}; | |
var obs1 = Rx.Observable.returnValue(1) | |
, obs2 = Rx.Observable.returnValue(2) | |
, obs3 = Rx.Observable.returnValue(3); | |
var obs4 = Rx.Observable.forkJoin([obs1, obs2, obs3]); | |
obs4.subscribe(function (results) { | |
for (var i = 0, len = results.length; i < len; i++) { | |
console.log(results[i]); | |
} | |
}); | |
}; | |
</script> | |
</head> | |
<body> | |
</body> | |
</html> |
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