How to make a owl carousel with arrows instead of next previous

If you’re using Owl Carousel 2, then you should use the following:

$(".category-wrapper").owlCarousel({
     items : 4,
     loop  : true,
     margin : 30,
     nav    : true,
     smartSpeed :900,
     navText : ["<i class="fa fa-chevron-left"></i>","<i class="fa fa-chevron-right"></i>"]
   });