Check if the date selected is javascript weekend

Question

I have an input on my system that receives a date selected by the user, I would like to know how I can check if this date is a weekend.

my input works that way:

<input type="text" class="form-control" id="data" name="data" placeholder="Data" required>  

$( function() {
  $( "#data" ).datepicker({showAnim: "slideDown", dateFormat: 'dd/mm/yy' , autoSize: true ,maxDate: "0" , minDate: "-2m", 

                                   dayNamesMin: [ "Dom", "Seg", "Ter", "Qua", "Qui", "Sex", "Sab" ],
                                   dayNamesShort: [ "Dom", "Seg", "Ter", "Qua", "Qui", "Sex", "Sab" ],
                                   monthNamesShort: [ "Jan", "Fev", "Mar", "Abr", "Mai", "Jun", "Jul", "Ago", "Set", "Out", "Nov", "Dez" ],
                                   monthNames: [ "Janeiro", "Fevereiro", "Março", "Abril", "Maio", "Junho", "Julho", "Agosto", "Setembro", "Outubro", "Novembro", "Dezembro"]});

  $("#data").on("change",function(){
        var selected = $(this).val();
        Edit(selected);});  
} );

Answer 1

First you have to create a Date type object by watching the Timezone (GMT -0300) for Brasilia time, if applicable.

var Minha_data = new Date('Fri May 17 2019 11:20:58 GMT-0300');

Or in a more simplified way

var Minha_data = new Date(2019,4,17);

The months go from 0-11 and so for the month of May we use the 4.

Then you should use the getDay() method to pick up the day of the week (0-6) to know whether or not it is weekend. Where 0 is Sunday and 6 is Saturday.

var e_fds = Minha_data.getDay() == 0 || Minha_data.getDay() == 6 ? true : false

Follow link to check the result https://jsfiddle.net/rmwbyzg5/