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.

Accepted Answer

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: ",")
```

Solution