jQuery教程分享如何在jquery内容中连接两个filter？filter1和filter2连接结果

 $("button").click(function() { //remove the selected class from the previously selected button $(this).closest('.filter').find('button.selected').removeClass('selected'); //put the class on the button you clicked $(this).addClass('selected'); //get the data-filter off of the selected buttons and join them into a selector var filter = '.'+ $('button.selected').map(function(){ return $(this).data('filter'); }).get().join('.'); //hide all the posts, and then show those that match $('.post').hide().filter(filter).show(); }); 

  
FIRST
  
  All One Two 
 
TWO
 
 All Washington Philadelphia 
 
 
 
One Washington
 
One Philadelphia
 
Two Philadelphia
 
Two Washington
 
One Philadelphia
 
Two Washington
 
One Philadelphia