Basically a[..count] means return a resized copy of array 'a' with 'count' elements. You could consider it to be the same as 'Dim a(count)' in other variants of Basic, although slices are much more flexible.
a=a[..] is kind of redundant, as it simply copies the original array 'a' back into 'a'. A more logical example would be:
b[] = a[..] which copies the contents of array 'a' into a new array 'b'.
a=a[..] is kind of redundant, as it simply copies the original array 'a' back into 'a'. A more logical example would be:
b[] = a[..] which copies the contents of array 'a' into a new array 'b'.