I've handled this by passing along what to do next to the async function:
var next = function(results) {};
if (cond) {
async1(next);
} else {
async2(next);
}
Easy to turn that into an asyncIf function if you find yourself doing
it frequently.
-- Daniel R. <[email protected]> [http://danielr.neophi.com/]
On Tue, Aug 7, 2012 at 12:44 PM, Dan Milon <[email protected]> wrote:
> True, that works on this simplified case, but there is more logic, depending
> on the cond, etc.
>
> I recall reading a blog post about having async if.
> like
> if (cond, trueFn, falseFn, doneFn)
>
> That was interesting.
>
> On 08/07/2012 07:47 PM, Mark Volkmann wrote:
>
>> On Tue, Aug 7, 2012 at 11:35 AM, Dan Milon <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> I am wondering which are the different patterns to handle cases like
>>
>> var results
>> if (cond) {
>> async1(function (err, res) {
>> results = res
>> })
>> }
>> else {
>> async2(function (err, res) {
>> results = res
>> })
>> }
>> // here need to do something with results.
>>
>> The problem is obvious, but i cannot see any good way to overcome it.
>>
>>
>> How about this?
>>
>> var results;
>> var fn = cond ? async1 : async2;
>> fn(function (err, res) {
>> results = res;
>> // Do something with results here.
>> });
>> --
>> R. Mark Volkmann
>> Object Computing, Inc.
>> --
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>
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