Question

I would like to know if it is possible to filter an array which contain multiple set of words to obtain a filtered array that contains only words that start with a string using predicates:

I guess an example will talk by himself:

Array:

• green pepper
• white grapes

Filtered array for the @”pe”

• green pepper

Currently i am applying one predicate like the following:

  NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF contains[c] %@",searchText];
  NSArray *tempArray = [[self.searchContent objectAtIndex:INGREDIENT] filteredArrayUsingPredicate:predicate];
  [self.ingredientsFiltered addObjectsFromArray:tempArray];

but this will give me both green pepper and white grapes as @”pe” is also a substring of pepper. Is there any recommended way to achieve this?

Answer 1

Try with this,

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES[c] %@", [NSString stringWithFormat: @".*\\b%@.*",searchText]];