Prevent ajax call from firing twice

Question

I have an ajax call

$(\'#button1\').on(\'click\', function(e){
    $.ajax({
      url:  url,
      type: \'POST\',
      async: true,
      dataType: \'json\         


        

Answer 1

As per the answer by Brennan,

$('#button1').on('click', function(e){
    $('#button1').attr('disabled', 'disabled');
    $.ajax({
      url:  url,
      type: 'POST',
      async: true,
      dataType: 'json',
      enctype: 'multipart/form-data',
      cache: false,
      success: function(data){
         $('#button1').removeAttr('disabled');
      },
      error: function(){}
    });
    e.stopImmediatePropagation();
    return false;
});

Here the button will be disabled and will be enabled on success