Verificação de Datas JS/Jquery

scopeDateVerify.js

/****************************************************************************
* Verificação de Datas
* https://www.w3schools.com/js/js_dates.asp
* https://www.w3schools.com/js/js_date_methods.asp
* https://pt.stackoverflow.com/questions/191886/n%C3%A3o-permitir-a-inser%C3%A7%C3%A3o-de-uma-data-posterior-a-outra-j%C3%A1-inserida
* **************************************************************************/

$('#expedicao').on('focusout', function(){
     var dateObj1 = new Date($('#expedicao').val());
     if(dateObj1.getFullYear() < 1930 ){
        $(this).css({color: 'red'});
         $(this).focus(); // Volta o foco para o segundo input
     }
 });