why quit selenium code example

Example 1: driver.close

driver.close() is used to close the current browser that we are
running the test.

Example 2: selenium close current driver but don't quit

# driver.close() closes one tab
# driver.quit() quits the session

# this closes all tabs but doesnt quit the session as a whole
alltabs = driver.window_handles
for i in range(len(alltabs)):
	driver.switch_to.window(alltabs[i])
	driver.close();sleep(1)