ContextQMD
Back to Freecodecamp

Challenge 106: Message Validator

curriculum/challenges/english/blocks/daily-coding-challenges-python/68ffb91507a5b645769328c9.md

latest1.9 KB
Original Source

--description--

Given a message string and a validation string, determine if the message is valid.

  • A message is valid if each word in the message starts with the corresponding letter in the validation string, in order.
  • Letters are case-insensitive.
  • Words in the message are separated by single spaces.

--hints--

is_valid_message("hello world", "hw") should return True.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_message("hello world", "hw"), True)`)
}})

is_valid_message("ALL CAPITAL LETTERS", "acl") should return True.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_message("ALL CAPITAL LETTERS", "acl"), True)`)
}})

is_valid_message("Coding challenge are boring.", "cca") should return False.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_message("Coding challenge are boring.", "cca"), False)`)
}})

is_valid_message("The quick brown fox jumps over the lazy dog.", "TQBFJOTLD") should return True.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_message("The quick brown fox jumps over the lazy dog.", "TQBFJOTLD"), True)`)
}})

is_valid_message("The quick brown fox jumps over the lazy dog.", "TQBFJOTLDT") should return False.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_valid_message("The quick brown fox jumps over the lazy dog.", "TQBFJOTLDT"), False)`)
}})

--seed--

--seed-contents--

py
def is_valid_message(message, validation):

    return message

--solutions--

py
def is_valid_message(message, validation):
    words = message.split()
    
    if len(words) != len(validation):
        return False

    for word, val_letter in zip(words, validation):
        if word[0].lower() != val_letter.lower():
            return False

    return True