Concat() [1/12]

static string System.String.Concat ( IEnumerable< string?> values )

inlinestatic

Definition at line 1687 of file String.cs.

    {
        if (values == null)
        {
            throw new ArgumentNullException("values");
        }
        using IEnumerator<string> enumerator = values.GetEnumerator();
        if (!enumerator.MoveNext())
        {
            return Empty;
        }
        string current = enumerator.Current;
        if (!enumerator.MoveNext())
        {
            return current ?? Empty;
        }
        Span<char> initialBuffer = stackalloc char[256];
        ValueStringBuilder valueStringBuilder = new ValueStringBuilder(initialBuffer);
        valueStringBuilder.Append(current);
        do
        {
            valueStringBuilder.Append(enumerator.Current);
        }
        while (enumerator.MoveNext());
        return valueStringBuilder.ToString();
    }

References System.String.Empty, System.Collections.Generic.Dictionary< TKey, TValue >.GetEnumerator(), and System.values.