<script>
function SpecialNumber() {
  // empty
}
Object.defineProperty(SpecialNumber, Symbol.hasInstance, {
    value: function(v) {
       return (v instanceof Number) && (v >= 1 && v <= 100);
    }
});
var two = new Number(2);
var zero = new Number(0);
console.log(two instanceof SpecialNumber); // true
console.log(zero instanceof SpecialNumber); // false
</script>