c# - Initialize a Jagged Array the LINQ Way

Question

I have a 2-dimensional jagged array (though it's always rectangular), which I initialize using the traditional loop:

var myArr = new double[rowCount][];
for (int i = 0; i < rowCount; i++) {
    myArr[i] = new double[colCount];
}

I thought maybe some LINQ function would give me an elegant way to do this in one statement. However, the closest I can come up with is this:

double[][] myArr = Enumerable.Repeat(new double[colCount], rowCount).ToArray();

The problem is that it seems to be creating a single double[colCount] and assigning references to that intsead of allocating a new array for each row. Is there a way to do this without getting too cryptic?

Answer 1

double[][] myArr = Enumerable
  .Range(0, rowCount)
  .Select(i => new double[colCount])
  .ToArray();