input-date snippet

input-date.html

<input id="date-form" type="date" min="2019-04-01" max="2030-03-31">
<script>
    (function() {
        var dateForm = document.querySelector('#date-form');
        var today = new Date();
        var month = ('0' + (today.getMonth() + 1)).slice(-2);
        var day = ('0' + today.getDate()).slice(-2);
        // set today as default value
        dateForm.value = `${today.getFullYear()}-${month}-${day}`
    }())
</script>u