08. Capital-Case Words2

function caseWord(arr) {
    let capitalCaseWords = [];
    for(let sentence of arr){
        let words = sentence.split(/\W+/).filter(word => word != "")

        for(let word of words){
            if(word == word.toUpperCase()){
                capitalCaseWords.push((word));
            }
        }
    }
    console.log(capitalCaseWords.join(", "));
}

//word(['We start by HTML, CSS, JavaScript, JSON and REST'])