How to disable Scroll Trigger on scroll up gsap ScrollTrigger? – Javascript

function animateFrom(elem, direction) {
  direction = direction || 1;
  var x = 0,
    y = direction * 100;
  if (elem.classList.contains("gs_reveal_fromLeft")) {
    x = -100;
    y = 0;
  } else if (elem.classList.contains("gs_reveal_fromRight")) {
    x = 100;
    y = 0;
  }
  elem.style.transform = "translate(" + x + "px, " + y + "px)";
  elem.style.opacity = "0";
  gsap.fromTo(elem, {
    x: x,
    y: y,
    autoAlpha: 0
  }, {
    duration: 1.5,
    x: 0,
    y: 0,
    autoAlpha: 1,
    ease: "expo",
    overwrite: "auto",
    onComplete: function() {
    ScrollTrigger.getAll().forEach((trigger) => { 
      if (elem === trigger.trigger) trigger.kill() 
    });

  }
  });
  
  
}

function hide(elem) {
  gsap.set(elem, {
    autoAlpha: 0
  });
}

document.addEventListener("DOMContentLoaded", function() {
  gsap.registerPlugin(ScrollTrigger);

  gsap.utils.toArray(".gs_reveal").forEach(function(elem) {
    hide(elem); // assure that the element is hidden when scrolled into view

    ScrollTrigger.create({
      trigger: elem,
       toggleActions: "play none none none",
      markers: false,
      onEnter: function() {
        animateFrom(elem)
      },
      // onEnterBack: function() { animateFrom(elem, -1) },
      // onLeave: function() { hide(elem) } // assure that the element is hidden when scrolled into view
    });
  });
});

.gs_reveal {
  opacity: 0;
  visibility: hidden;
  will-change: transform, opacity;
}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.2.3/css/bootstrap.min.css" integrity="sha512-SbiR/eusphKoMVVXysTKG/7VseWii+Y3FdHrt0EpKgpToZeemhqHeZeLWLhJutz/2ut2Vw1uQEj2MbRF+TVBUA==" crossorigin="anonymous" referrerpolicy="no-referrer"
/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.11.5/gsap.min.js" integrity="sha512-cOH8ndwGgPo+K7pTvMrqYbmI8u8k6Sho3js0gOqVWTmQMlLIi6TbqGWRTpf1ga8ci9H3iPsvDLr4X7xwhC/+DQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.11.5/ScrollTrigger.min.js" integrity="sha512-AMl4wfwAmDM1lsQvVBBRHYENn1FR8cfOTpt8QVbb/P55mYOdahHD4LmHM1W55pNe3j/3od8ELzPf/8eNkkjISQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>


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    <h1 class="gs_reveal text-center">Scroll down and up to see different reveal animations</h1>
  </div>

  <div class="">
    <div class="row py-5">
      <div class="col-5 gs_reveal gs_reveal_fromLeft">
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      <div class="col-5 gs_reveal gs_reveal_fromRight">
        <div class="d-block">
          <img src="https://picsum.photos/479/479?index=2" alt="" class="img-fluid">
        </div>
      </div>
    </div>

    <div class="row py-5">
      <div class="col-5 gs_reveal_fromLeft">
        <div class="block">
          <img src="https://picsum.photos/479/479?index=3" alt="" class="img-fluid">
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    <div class="row py-5">
      <div class="col-7 text-end">
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      <div class="col-5 gs_reveal gs_reveal_fromRight">
        <div class="d-block">
          <img src="https://picsum.photos/479/479?index=4" alt="" class="img-fluid">
        </div>
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</div>