isEmpty

Checks whether the range is empty.

The range is empty if its start value is greater than the end value.

Checks whether the range is empty.

The range is empty if its start value is greater than the end value.

Checks whether the range is empty.

The range is empty if its start value is greater than the end value.

Checks whether the range is empty.

The range is empty if its start value is greater than the end value.