theMostPowerfulWord.js

function theMostPowerfulWord(input) {
    let index = 0;
    let command = input[index];
    index++;
    let maxWord = Number.MIN_SAFE_INTEGER;
    let maxWordName = "";

    while (command !== "End of words") {
        let asciiSum = 0;
        let firstLetterIsVocal = false;

        for (let i = 0; i < command.length; i++) {
            let asciiValue = command.charCodeAt(i);
            let vocals = ["a", "e", "i", "o", "u", "y", "A", "E", "I", "O", "U", "Y"];

            for (letter = 0; letter < vocals.length; letter++) {
                let currentLetter = vocals[letter];
                let firstLetter = command[0];
                if (firstLetter === currentLetter) {
                    firstLetterIsVocal = true;
                    break;
                }
            }
            asciiSum += asciiValue;
        }

        if (firstLetterIsVocal) {
            asciiSum *= command.length;
        } else {
            asciiSum = Math.floor (asciiSum / command.length);
        }

        if (asciiSum > maxWord) {
            maxWord = asciiSum;
            maxWordName = command;
        }

        command = input[index];
        index++;
    }
    console.log(`The most powerful word is ${maxWordName} - ${maxWord}`);
}

theMostPowerfulWord(["The", "Most", "Powerful", "Word", "Is", "Experience", "End of words"]);
theMostPowerfulWord(["But", "Some", "People", "Say", "It's", "LOVE", "End of words"]);