Character count within a word

The code I created at first.

def charInBagOfWordsCount(bagOfWords,keyCharacter):
    result = 0
    for i in range(len(bagOfWords)):
        if bagOfWords == keyCharacter:
            return result

After Copilot code review.

def charInBagOfWordsCount(bagOfWords, keyCharacter):
    result = 0
    for word in bagOfWords:
        for char in word:
            if char == keyCharacter:
                result += 1
    return result

What is the meaning of result += 1 ?

Answer;
In the charInBagOfWordsCount function, result += 1 is a shorthand notation for result = result + 1. It increments the value of result by 1 every time the keyCharacter is found in a word in the bagOfWords list. The final value of result is the total count of keyCharacter in all the words in bagOfWords.

Why we don't need count method to count words?
Answer;
I think you might be referring to the charInBagOfWordsCount function that I provided earlier. The reason we don’t need the count method to count the number of times a character appears in a list of words is because the count method counts the number of times an entire word appears in a list, not the number of times a character appears in a list.

In the charInBagOfWordsCount function, we are interested in counting the number of times a character appears in a list of words, not the number of times an entire word appears in a list. Therefore, we need to loop through each word in the list and then loop through each character in the word to count the number of times the keyCharacter appears.