1List<string> names = new List<string>() { "John", "Anna", "Monica" };
2var result = String.Join(", ", names.ToArray());
3
1['tom', 'dick', 'harry'].join(', ').replace(/, ([^,]*)$/, ' and $1')
2> "tom, dick and harry"
1String.join(" - ", "This", "course", "is", "awesome");
2
3
4String.valueOf(22); // retourne "22"
5