禁止form重复提交

$("form").submit(function () {
            console.log("提交了");
            $("input:submit").attr("disabled", "true");
            setTimeout(function () {
                $("input:submit").removeAttr("disabled");
            }, 3000);
        });

 网上看到老外写的

// jQuery plugin to prevent double submission of forms
jQuery.fn.preventDoubleSubmission = function() {
  $(this).on('submit', function(e) {
    var $form = $(this);

    if ($form.data('submitted') === true) {
      // Previously submitted - don't submit again
      e.preventDefault();
    } else {
      // Mark it so that the next submit can be ignored
      $form.data('submitted', true);
    }
  });

  // Keep chainability
  return this;
};


//Use it like this
$('form').preventDoubleSubmission();