Modifying the Last Character

Create a function which makes the last character of a string repeat n number of times.

Examples

modifyLast("Hello", 3) ➞ "Hellooo"

modifyLast("hey", 6) ➞ "heyyyyyy"

modifyLast("excuse me what?", 5) ➞ "excuse me what?????"

Notes

• Tests will include numbers and punctuation.
• Make sure your code is not case sensitive.