jQuery toggle alternative method_jquery

The specific content is as follows:

$('.back_left dt').toggle(function(){
$(this).addClass("selected");
$(this).siblings('dd').slideUp();
},function(){
$(this).removeClass("selected");
$(this).siblings('dd').slideDown();
}); 

I was working on a project today and copied a code from someone else’s website. I found that it couldn’t be implemented. When I was so anxious that I didn’t want to do it anymore, I thought, could it be a jquery version problem? Then I lowered the jquery version to 1.8 and the function was implemented. My own jqurey version is 1.11.1. It turned out to be a version problem. Once the reason was found, it was easy to solve. After searching on Baidu, I found that the toggle method was in version 1.9. It has been deleted. Changing the version can solve the problem, but I don't want to use the lower version anymore. I still want to use the 1.11.1 version. What method can I use to replace toggle?

After testing, you can use the following method instead:

$(document).ready(function(){ 
$('.back_left dt').click(function(){
if($(this).hasClass("selected")){
$(this).toggleClass("selected");
$(this).siblings('dd').slideDown();
}else{
$(this).toggleClass("selected");
$(this).siblings('dd').slideUp();
} 
}); 
});