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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