.NET equivalent of JavaScript Array.join()

Question

Possible Duplicate:
Array.Join in .Net?

From a List<String> that contains "Hello" and "World", I would like to obtain "Hello, World".

Is there a library function that would accept my list and and the string ", " and return "Hello, World" ?

score 5 · Accepted Answer · answered Nov 01 '12 at 16:51

5

Yes, there is: not surprisingly, it is called Join

String.Join(", ", new string[] {"hello", "world"});

In .NET 4.0 and later, the second parameter could be an IEnumerable<T>.

answered Nov 01 '12 at 16:51

Actually, in .NET 4 they added `params` to [`String.Join`](http://msdn.microsoft.com/en-us/library/57a79xd0(v=vs.100).aspx) so you can do `String.Join(", ", "hello", "world");` without the `new string[] { ... }` part ;) – khellang Nov 01 '12 at 16:55
Thanks, I was looking in the List class – Samuel Rossille Nov 01 '12 at 16:59

score 4 · Answer 2 · answered Nov 01 '12 at 16:51

4

Yes; String.Join(separator, array)

answered Nov 01 '12 at 16:51

SLaks

score 0 · Answer 3 · edited Nov 01 '12 at 17:08

0

string.join(yourlist.ToArray())

edited Nov 01 '12 at 17:08

John Conde

answered Nov 01 '12 at 16:52

albattran

3 Answers3