function longestString() {
let longeststr = "";
for (let i = 0; i < arguments.length; i++) {
if (arguments[i].length > longeststr.length) {
longeststr = arguments[i];
}
}
return longeststr;
}
console.log(longestString("aa", "cccc", "d", "fff"));
/*
run:
cccc
*/