Python 실습_Replace at Index

Replace at Index

You can replace a specific character in a string by creating a new string that consists of all characters up to some index, the new character than you want to insert, and then the remainder of the original string. Create the function replace_at_index() that accepts a string, an index, and a character as inputs and returns a string with the character at the index replaced with the replacement string.

>>> replace_at_index('dad',0, 'b')
'bad'
>>> replace_at_index('add',2,'s')
'ads'
>>> replace_at_index('tap',1,'o')
'top' 

Results

Call Expected Received Correct replace_at_index('dad',0, 'b') bad bad true replace_at_index('add',2,'s') ads ads true replace_at_index('tap',1,'o') top top true