I have an array of elements where the entries are sparse. How can I easily condense the sparse array into a dense array so that I don't have to keep checking for null and undefined values every time I loop through the data?
Here is some example data:
var sparse = [];
sparse[1] = undefined;
sparse[5] = 3;
sparse[10] = null;
var dense = sparseToDenseArray(sparse);
// dense should be [3]