如何在使用jQuery单击特定链接时切换到特定选项卡面板？

Question

I have a tab panel using jQuery and everything works properly, except the link with data-anchor inside a tab content that should be switch to a specific tab. The tab switching is working but the tab content is not displayed.

How to fix this?

HTML:

<div class="tab-panels">
  <ul class="tabs">
    <li class="active" rel="panel1">panel1</li>
    <li rel="panel2" id="custpanel2">panel2</li>
    <li rel="panel3">panel3</li>
    <li rel="panel4">panel4</li>
  </ul>
  <div class="panel active" id="panel1">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div>
  <div class="panel" id="panel2">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div>
  <div class="panel" id="panel3">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div>
  <div class="panel" id="panel4">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
    <a href="custpanel2" data-anchor="#custpanel2">
      Click here
    </a>
  </div>
</div>

JS:

$('.tab-panels .tabs li').on('click', function(){
  var $panel = $(this).closest('.tab-panels');

  $panel.find('.tabs li.active').removeClass('active');
  $(this).addClass('active');

  var panelToShow = $(this).attr('rel');

  $panel.find('.panel.active').fadeOut(300, showNextPanel);

  function showNextPanel(){
    $(this).removeClass('active');

    $('#'+panelToShow).fadeIn(300, function(){
      $(this).addClass('active');
    })
  }
});

//Link inside tab content
$('[data-anchor="#custpanel2"]').on('click', function(e){
    e.preventDefault();
    var $panel = $(this).closest('.tab-panels');

    $panel.find('.tabs li.active').removeClass('active');
    $('.tabs li:nth-child(3)').addClass('active');

    var panelToShow = $(this).attr('rel');


    $panel.find('.panel.active').fadeOut(300, showNextPanel);

    function showNextPanel(){
      $(this).removeClass('active');

      $('#'+panelToShow).fadeIn(300, function(){
        $(this).addClass('active');
      })
    }
});

Answer 1

var panelToShow = $(this).attr('rel');
value of panelToShow is retrived from attirbute named " rel " and the link don't have " rel " attribute you can fix the problem without modifying the logic eg

rel="panel1"

Answer 2

$(this) is not getting correct element inside the function I guess, So please use below code.

function showNextPanel(){
    $('.tab-panels div.panel').removeClass('active');

    $('#'+panelToShow).fadeIn(300, function(){
        $(this).addClass('active');
    });
}

EDIT

$('[data-anchor="#custpanel2"]').on('click', function(e){
    e.preventDefault();
    var $panel = $(this).closest('.tab-panels');

    $panel.find('.tabs li.active').removeClass('active');
    $('.tabs li:nth-child(3)').addClass('active');

    var panelToShow = $(this).attr('href');


    $panel.find('.panel.active').fadeOut(300, showNextPanel);

    function showNextPanel(){
      $('.tab-panels div.panel').removeClass('active');

      $('#'+panelToShow).fadeIn(300, function(){
        $(this).addClass('active');
      })
    }
});