Question

I have got an array, I know how to count its elements, but I need to count elements until a specific word:

NSMutableArray *whatBondInFrame;

whatBondInFrame=[NSMutableArray arrayWithObjects:@"red",@"red",@"red",@"gray",@"red",@"ran",@"gray",@"gray",nil];

I know [ whatBondInFrame count] but, let’s say I want to know how many elements I have till the first gray or from the word “ran”.

How would I get that?

Answer 1

This isn’t tested but it should work:

int loc = 0;
for (loc; loc < [array count]; loc++) {
    NSString *str = [array objectAtIndex:loc];
    if ([str isEqualToString:@"ran"])
        break;
}
int length = array.count-loc;

this gives you the count from the first element named ran.
If you want to know how many elements there are before (till) the word ‘ran’ then replace the last line with

 int length = loc