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String concatenation using LINQ to create a CSV/PSV string

, 30 Jun 2011 CPOL 2.8K
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You can use the Aggregate method with a StringBuilder. I've modified Eric's alternative in order to save a bit of code. Only one return statement is needed as an empty StringBuilder returns an empty string.public static string Join(this IEnumerable parts, string separator) { ...
You can use the Aggregate method with a StringBuilder. I've modified Eric's alternative in order to save a bit of code. Only one return statement is needed as an empty StringBuilder returns an empty string.
public static string Join(this IEnumerable<string> parts, string separator)
       {
           var builder = new StringBuilder();
           if (parts.Any())
           {
               builder.Append(parts.First());
               parts.Skip(1).Aggregate(builder, (sb, s) => sb.Append(separator).Append(s));
           }
           return builder.ToString();
       }

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George Swan
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Wales Wales
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