If you don't care about short-circuiting after finding the nth occurrence you could of course just do `find(f, A)[n]`.
On Friday, July 17, 2015 at 10:00:43 AM UTC-4, Pontus Stenetorp wrote: > > Everyone, > > I just recently needed to find the index of the n-th occurrence of a > predicate an Array and was a bit surprised that there was not a > convenience function in Base. Rolling one on your own is simple, but > I somehow expected to find something in Base to get the same > functionality. > > function findocc(testf::Function, A, n) > i = 0 > for _ in 1:n > i = findnext(testf, A, i + 1) > i != 0 || return 0 > end > return i > end > > Am I perhaps missing something that is already supported in Base? [1] > If not, I may consider yet another small pull request. But as always > with these small convenience functions I fear that I am missing > something obvious that already supports the same functionality. > > Pontus > > [1]: > http://julia.readthedocs.org/en/latest/stdlib/arrays/?highlight=find#Base.find > >
