slick slider work only some class images code example

Example 1: slick slider go to a particular slider

$('#slider_selector_id').slick('slickGoTo', slide_number);

Example 2: slick slider not work

$('.fade').slick({
  dots: true,
  infinite: true,
  speed: 500,
  fade: true,
  slide: '> div',
  cssEase: 'linear'
});