Swiper: Destroy multiple instances of Swiper not working

[leone510es]

I use multiple Swiper on my page. They should look the same, work the same. I use only one class (.swiper-container) for selector, because I don't know if I will use more instances in the future or not.
My site is responsive and I only want to use Swiper below a specific window width.
The problem: when the destory fired, only the SECOND instance destroyed, for the first one I get this error message:
Uncaught TypeError: Cannot read property 'destroy' of undefined

With only one instance everything is working.

My code:

var mySwiper = undefined;
function initSwiper() {
    var screenWidth = $(window).width();        
    if(screenWidth < 992 && mySwiper == undefined) {            
        $('.swiper-container').each(function(){
            mySwiper = new Swiper(this, {            
                scrollbar: $(this).find('.swiper-scrollbar')[0],
                slidesPerView: 'auto',            
                effect: 'slide',
                paginationClickable: true,
                spaceBetween: 0,
                freeMode: true
            })
        });        
    } else if (screenWidth > 991 && mySwiper != undefined) {            
        mySwiper.destroy();
        mySwiper = undefined;
        console.log("destroy");
        jQuery('.swiper-wrapper').removeAttr('style');
        jQuery('.swiper-slide').removeAttr('style');            
    }        
}    
//Swiper plugin initialization
initSwiper();    
//Swiper plugin initialization on window resize
$(window).on('resize', function(){
    initSwiper();        
});

How can I force the destroy method to work on every instance?

[nolimits4web]

It will not work like that, you should destroy them in the same logic using each method:

$('.swiper-container').each(function(){
  this[0].swiper.destroy();
})

[kemni]

I can get swiper object using this[0].swiper, but how to make sure , the instances are destroyed. when i apply code above, it says "TypeError: T is null"

[DeoluA]

In case anyone else stumbles on this, removing the indexing worked for me:

$(".swiper-container").each(function(){
      this.swiper.destroy(); // <-- 'this' not 'this[0]' worked for me
});

I'm using Swiper 4.1.5.