Implementing ArrayEachLimited method.

[ivahaev]

I'm not sure of the name, but just wrote implementation of ArrayEach with ability to stop processing array when required value found. To keep the backward compatibility I create new method ArrayEachLimited and ArrayEach uses it internally.

So callback function receives one extra argument – index of element in array and should return bool. If called callback returns false, ArrayEachLimited will stop processing.

What do you think?

[daboyuka]

In my opinion, it should return an error instead, and that error should be passed through to the caller of ArrayEachLimited.

[ivahaev]

I thought about error, but in my opinion, error need to return when something went wrong. In this case we just want to tell that no need to iterate more.

[daboyuka]

True, but error is more versatile. You could return io.EOF to signal "done iterating, no problem" to your outer code.

[ivahaev]

Sounds good. Waiting for Leonid vote

[ivahaev]

So, Leonid, what do you think about it?

[ppanyukov]

I think I would prefer to return error, with io.EOF being a clean signal to stop.

[jimmyjames85]

Currently you can early exit in ObjectEach and I think adding that ability to ArrayEach would also be a good idea. Has there been any progress to resolve the branch conflicts? Are we still waiting @buger to vote?