JSFiddle - React, Tailwind, and code Playground

HTML

<input type='text' id='datepicker'></div>

<input type='text' value='value' id='inputfield'>

JavaScript

$("#datepicker").datepicker({
    changeMonth: true,
    changeYear: true,
    yearRange: "-35:+0",
    dateFormat: "yy-mm-dd",
    minDate:mdate()
});


function mdate(){
  var str = "-35Y";
  if($("#inputfield").val() == "value"){
    str = "-33Y";
  }
  return str;
}