Pointless button

Below is some JavaScript containing Smudge the cat that was used for an Age Testing Algorithm.


        console.log("What is your age?");
        document.write("Please enter your age.");

        function ageDetect() {
            let age = 1;
            if ('age' <= 5) {
                console.log('not old enough');
                document.write('Smudge the cat frowns upon you!');
            }
            else ('age <= 18'); {
                console.log('old enough');
                document.write("Yes, Meow- I mean hello!");
            }
        };