input type=date min today html code example

Example 1: html date min today

var today = new Date();
var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0!
var yyyy = today.getFullYear();
 if(dd<10){
        dd='0'+dd
    } 
    if(mm<10){
        mm='0'+mm
    } 

today = yyyy+'-'+mm+'-'+dd;
document.getElementById("datefield").setAttribute("max", today);

Example 2: html input date min

<label for="meeting">Next meeting (August 2021):</label>
<input type="date" 
       id="meeting" 
       name="meeting"
       min="2021-08-01" 
       max="2021-08-31"
       defaultValue="2021-08-01">