Question

I am having an array like fallowing,

NSArray*array = [NSArray arrayWithObjects:@"1.1 something", @"1.2 something else", @"1.3 out of left field", @"1.4 yet another!", nil];

Now,i am having the string like fallowing,

NSString*str = @"1.3";

Now i will send the str .Then it needs to find that str in array and it need to return the index of object where that text found.Means i need index 2 has to come as output.Can anyone share the code please.Thanks in advance.

Answer 1

Try

NSString *searchString = [str stringByAppendingFormat: @" problem%@", [str substringFromIndex: 2]];
NSUInteger index = [array indexOfObject: searchString];

Or (because you somehow like oneliners):

[array indexOfObject: [[array filteredArrayUsingPredicate: [NSPredicate predicateWithFormat: @"SELF beginswith %@", str]] objectAtIndex: 0]];