Bjoern Hoehrmann wrote:
* David Bruant wrote:
I've found myself multiple times in a situation where I needed the index
of the first element responding to some conditions. I solved it the
following way:
var index;
array.some(function(e, i){
if(someCondition(e)){
index = i;
return false;
}
return true;
})
It's usually a bad idea to trigger side-effects from such callbacks. The
proper solution here would be having a suitable method available, like
var index = array.findIndex(someCondition);
as it is called in Haskell and C#.
Hi Bjoern, findIndex is indeed a missing Array generic. I'll see if we
can get it on the agenda for the next TC39 meeting (coming up quickly,
mid-March). Thanks,
/be
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