Why I can not move the dot when it reaches the left end?


#1



var main = function(){
    $('.dropdown-toggle').click(function(){
        $('.dropdown-menu').toggle();
        });
        
    $('.arrow-next').click(function(){
        var currentSlide = $('.active-slide');
        var nextSlide = currentSlide.next();
        if(nextSlide.length == 0){
            nextSlide = $('.slide').first();
            nextDot = $('.dot').first();}
        
        currentSlide.fadeOut(600).removeClass('active-slide');
        nextSlide.fadeIn(600).addClass('active-slide');
        
        var currentDot = $('.active-dot');
        var nextDot = currentDot.next();
        currentDot.removeClass('active-dot');
        nextDot.addClass('active-dot');
    });
    
    $('.arrow-prev').click(function(){
        var currentSlide = $('.active-slide');
        var prevSlide = currentSlide.prev();
        
        var currentDot = $('.active-dot');
        var prevDot = currentDot.prev();
        currentDot.removeClass('active-dot');
        prevDot. addClass('active-dot');
        
if(prevSlide.length == 0) {
  prevSlide = $('.slide').last();
  prevDot = $('.dot').last();
}
        
        currentSlide.fadeOut(600).removeClass('active-slide');
        prevSlide.fadeIn(600).addClass('active-slide');
        

        
        });
    
    
    };
    

$(document).ready(main);


#2

@bytemaster81548

You will have to keep a strict order in your code.....

s t e p s - - f o r - - n e x t S l i d e
-1
-1a create a selection of nextSlide (2 steps, capture 'active-slide, capture next() slide )'
-1b create a selection of nextDot
-2 check if selection of nextSlide is EMPTY
-2a if EMPTY change nextSlide selection to first slide
-2b and change nextDot selection to first Dot
-3 swap -active-slide- and -active-dot- class from current to next
Step3 is done by

   currentSlide.fadeOut(600).removeClass('active-slide');
   nextSlide.fadeIn(600).addClass('active-slide');
   currentDot.removeClass('active-dot');
   nextDot.addClass('active-dot');

s t e p s - - f o r - - p r e v S l i d e
-1
-1a create a selection of prevSlide
-1b create a selection of prevDot
-2 check if selection of prevSlide is EMPTY
-2a if EMPTY change prevSlide selection to last slide
-2b and change prevDot selection to last Dot
-3 swap -active-slide- and -active-dot- class from current to prev
Step3 is done by

    currentSlide.fadeOut(600).removeClass('active-slide');
    prevSlide.fadeIn(600).addClass('active-slide');
    currentDot.removeClass('active-dot');
    prevDot.addClass('active-dot');

#3

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