Is there any generic iteration function that stops at first match?

Jack jckj33 at gmail.com
Fri Mar 5 05:32:27 UTC 2021


On Friday, 5 March 2021 at 02:43:36 UTC, H. S. Teoh wrote:
> On Fri, Mar 05, 2021 at 02:13:39AM +0000, Jack via 
> Digitalmars-d-learn wrote:
>> something like filter[1] but that stops at first match? are 
>> there any native functions for this in D or I have to write 
>> one? just making sure to not reinvent the wheel
> [...]
>
> Why not just .front?  E.g.:
>
> 	int[] data = [ 1,2,3,4,5 ];
> 	auto r = data.filter!(v => v % 2 == 0);
> 	assert(r.front == 2);
>
>
> T

it loops over the entire array then returns, I'd like to stop as 
soon as the predicate return true


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