longest string
function longestString() { var longest = ' '; for (var i=0; i < arguments.length; i++) { if(arguments[i].length > longest.length) { longest = arguments[i]; } } return longest; } console.log(longestString("asda", "asdasdasd", "12311","akjsdgkjagsdkjagkjdgkajsgdkjas"));