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

Use the NSArray instance method componentsJoinedByString:.

In Objective-C:

- (NSString *)componentsJoinedByString:(NSString *)separator 

In Swift:

func componentsJoinedByString(separator: String) -> String 

Example:

In Objective-C:

NSString *joinedComponents = [array componentsJoinedByString:@","]; 

In Swift:

let joinedComponents = array.joined(seperator: ",")