JS1-6

        var name = 'hello';
        var result = name.toUpperCase();
        console.log(result);

        var sentence = 'good afternoon, mr mike.';

        function upperSentence(sentence) {
            var ss = sentence.toLowerCase().split(" ");
            for (var i = 0; i < ss.length; i++) {
                ss[i] = ss[i].slice(0, 1).toUpperCase() + ss[i].slice(1);
            }
            return ss.join(' ');
        }
        console.log(upperSentence(sentence));

        var money = '￥20';

        function findNum(money) {
            var index = money.search(/[$￥]/);
            return money.slice(index + 1);
        }
        console.log(findNum(money));