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static object[] concatArray(object[] arrayA, object[] arrayB)
{
int lenA = (arrayA == null ? 0 : arrayA.Length);
int len = lenA + (arrayB == null ? 0 : arrayB.Length);
object[] result = new object[len];
if (arrayA != null)
{
arrayA.CopyTo(result, 0);
}
if (arrayB != null)
{
arrayB.CopyTo(result, lenA);
}
return result;
}