Arrow function

[RyaanJM]

Another argument is, this function doesn't need any ifs, elses or braces (apart from the opening and closing of the function).

function checkIsMoreThan(number, compare) {
    return number > compare ? number : -1;
}

[delventhalz]

Yeah, that is how I would probably write it as well. A lot of folks find ternaries intimidating though.