JS date comparison

if(nowDate() > date){
    //  yesterday 
    $("#yesterday").html(htmlStr);
}else if (nowDate() < date){
    //  Tomorrow, 
    $("#tomorrow").html(htmlStr);
}else {
    //  today 
    $("#today").html(htmlStr);
}

//  Today's date 
function nowDate(){
    let now = new Date();
    let year = now.getFullYear();
    let month = now.getMonth() + 1;
    let day = now.getDate();

    if(month < 10){
        month = '0'+month;
    }
    if(day < 10){
        day = '0'+day;
    }
    let nowStr = year +"-"+ month+"-"+day;

    return nowStr
}