JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" class="datepicker" name="DateFrom" id="DateFrom" />
<input type="text" class="datepicker" name="DateTo" id="DateTo" />

JavaScript

$(function () {
    $('#DateFrom').datepicker({
        onSelect: function() {
            var date = $('#DateFrom').datepicker('getDate');
            date.setTime(date.getTime() + (1000*60*60*24*6));
            $('#DateTo').datepicker('option', 'maxDate', date);
            $('#DateTo').datepicker('option', 'minDate', $('#DateFrom').datepicker('getDate'));
            showUser();
        },
        minDate: -90, 
        maxDate: "+1D"
    });

    $('#DateTo').datepicker({
        onSelect: showUser,
        minDate: -90, 
        maxDate: "+1D"
    });
});

function showUser() {}