[Algorithm] 5 week(2.7 ~ 13) 1/3

1002. Find Common Characters

var commonChars = function(words) {
    const result = [];   
    
    for(const char of words[0]) {
        const allWordsContainChar = words.every(word => word.includes(char))
        if(allWordsContainChar) {
            result.push(char);
            words = words.map(word => word.replace(char, ''));
        }
    }    
    
    return result;
};