Objective-C Simplest way to create comma separated string from an array of objects

Question

So I have a nsmutablearray with a bunch of objects in it. I want to create a comma separated string of the id value of each object.

Answer 1

Create String from Array:

-(NSString *)convertToCommaSeparatedFromArray:(NSArray*)array{
    return [array componentsJoinedByString:@","];
}

Create Array from String:

-(NSArray *)convertToArrayFromCommaSeparated:(NSString*)string{
    return [string componentsSeparatedByString:@","];
}