Unspecified number of parameters in a function

Question

I have an Array of Arrays and a method that expects N arguments of type Array.

For example, if I have: let arr = [[0, 1], [2, 3], [4, 5]];

arr has 3 arrays inside, so I could do this:

theFunction(arr[0]);
theFunction(arr[0], arr[1]);
theFunction(arr[0], arr[1], arr[2]);

The question is: How can I accomplish this if I don't know the number of arrays?

Answer 1

   theFunction(...arr)

Just spread the array into the function arguments.