collapseToStart abstract method
Collapses the range to its start.
Sets the end of the range to be the same position as the start. The new range is empty and positioned at the start of the current range.
Implementation
void collapseToStart();Collapses the range to its start.
Sets the end of the range to be the same position as the start. The new range is empty and positioned at the start of the current range.
void collapseToStart();