click not working in slick slide code example

Example 1: slick slider not work

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

Example 2: slick slider unslick

$('.slider-for').slick({
  slidesToShow: 1,
  slidesToScroll: 1,
  arrows: false,
  fade: true,
  asNavFor: '.slider-nav'
});
$('.slider-nav').slick({
  slidesToShow: 3,
  slidesToScroll: 1,
  asNavFor: '.slider-for',
  dots: true,
  centerMode: true,
  focusOnSelect: true
});