How can I make the criterias Work in Type Script

I wonder how or if its possible to make these if and else criterias work? I dont know why this doesn't. Thanks for your Help

if (element > 9) {
    Array.from(counter).forEach((element: HTMLElement, index) => {
            console.log(index, element);
            element.innerText = (index + 1).toString();
        });
}else (element <== 9) {
    Array.from(counter).forEach((element: HTMLElement, index) => {
                console.log(index, element);
                element.innerText = 0 + (index + 1).toString();
            });
}