BTW, the return in case B is ignored and not needed.
On Tue, Apr 10, 2012 at 4:24 PM, Mark Hahn <m...@hahnca.com> wrote:
> The only difference is that the return value of foo takes on the
> callback's return value instead of null. There is no other difference at
> all.
>
>
> On Tue, Apr 10, 2012 at 4:17 PM, Ken <ken.woodr...@gmail.com> wrote:
>
>> Assuming that the callback doesn't return a value, does v8 behave any
>> differently when invoking callbacks in one of these forms vs. the other? I
>> find the first approach to be a convenient shorthand in many cases, but am
>> wondering (after observing some unexpected timings when profiling async
>> methods) if it leads to v8 doing something odd with the stack.
>>
>> Approach A, return the invoked callback:
>>
>> function foo(a, callback) {
>> var bar = ...;
>> return callback(bar);
>> }
>>
>> foo("derp", function(b) { ...; return; });
>>
>> Approach B, invoke callback, then return:
>>
>> function foo(a, callback) {
>> var bar = ...;
>> callback(bar);
>> return;
>> }
>>
>> foo("derp", function(b) { ...; return; });
>>
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