Remove Vowels - codepath/compsci_guides GitHub Wiki

Unit 3 Session 2 (Click for link to problem statements)

U-nderstand

Understand what the interviewer is asking for by using test cases and questions about the problem.

• Will the string only contain letters?
  • Not necessarily! Any characters that aren't letters should stay unchanged.

P-lan

Plan the solution with appropriate visualizations and pseudocode.

General Idea: Create a new string character-by-character, skipping any characters matching a string of possible vowels.

1) Create a string of all possible vowels
2) Create an empty string for the result
3) For each character in the input string:
  a) If the character is not in vowels string, add to result
4) Return result

⚠️ Common Mistakes

• You may be tempted to write 10 if-statements to check for each possible vowel -- but the in operator in python makes it much easier!

I-mplement

def remove_vowels(s):
    # Define the vowels to remove
    vowels = "aeiouAEIOU"
    # Initialize an empty string to build the result
    result = "
    # Iterate through each character in the input string
    for char in s:
        # If the character is not a vowel, add it to the result string
        if char not in vowels:
            result += char
    # Return the result string
    return result