let str = "JavaScript";
        console.log(scramble(str));
        function scramble(val) {
            let max = val.length;
            let temp = "";
            for(let i=0;i<max;i++){
                console.log(val.length);
                let index = Math.floor(Math.random() * val.length);
                temp += val[index]; 
                console.log(temp); 
                val = val.substr(0, index) + val.substr(index + 1);
                console.log(val);
            }
           return val
        }