7.6 / 10 123... May 2026

The prompt likely refers to from the CodeHS Python curriculum. This exercise requires you to write a function that removes every instance of a specific "letter" (or substring) from a given word. Correct Python Implementation

: This method returns the starting index of the first occurrence of letter . If it isn't found, it returns -1 . 7.6 / 10 123...

You can solve this using a while loop to repeatedly find and remove the target substring until it no longer exists in the word. The prompt likely refers to from the CodeHS