<details>
  <summary>???? ??</summary>
  <div class="content">
    <p>
      Lorem ipsum dolor sit amet, censertur apisicing elit. modi unde, ex rem voluptates autem aliquid veniam quis temporibus repudiandae illo, nostrum, pariatur que! Animi modi dignissimos?? voluptatum?? voluptatum??!
    </p>
  </div>
</details>

???? ???

??? ??? ?? ?? ???? ???? ???? ???????. ?? ??? ??? ?? ?? ??? ? ????<details></details> ???? new Accordion() ?? ??????.

 ??? ???? {
  ??? (el) {}
  onclick (e) {}
  ?? () {}
  ?? ??() {}
  ????() {}
  OnanimationFinish (Open) {}
}

constructor()

???? ? ????? ??? ???? ???? ? ?????.

 ??? (el) {
  this.el = el;
  this.summary = el.QuerySelector ( 'Summary');
  this.content = el.querySelector ( '. content');
  this.animation = null;
  this.isclosing = false;
  this.isexpanding = false;
  this.summary.addeventListener ( 'click', (e) => this.onclick (e));
}

onClick()

onClick() ???? ??? ??????? (?? ?? ??)?? ?????. ??? ??????? ?? ???? ????? ????? ??? ???????. ?? ??? ?? ??? ????? ??? ???? ??? ???? ????? ??? ????.<details></details> ??? ??? ????? open ??? ?????. ???? ??? ??? this.el.open ? ?? ?? ? ????.

 onclick (e) {
  e.preventDefault ();
  this.el.style.overflow = 'Hidden';
  if (this.isclosing ||! this.el.open) {
    this.open ();
  } else if (this.isexpanding || this.el.open) {
    this.shrink ();
  }
}

shrink()

? shrink() ??? waapi? .animate() ??? ?????. ??? ??? MDN ??? ?? ? ????. WAAPI? CSS @keyframes ? ?? ?????. ?????? ?? ? ? ? ???? ???????. ? ???? ? ?? ? ??? ? ?????. ? ??? ??? ?? ???? ? ??? ????? ?? ? ?????. ?? ??? startHeight ??? ?????. ??? ??? endHeight ??? ?????.<summary></summary> ?.

 ?? () {
  this.isclosing = true;
  const startheight =`$ {this.el.offsetheight} px`;
  const endheight =`$ {this.summary.offsetheight} px`;
  if (this.animation) {
    this.animation.cancel ();
  }
  this.animation = this.el.animate ({{
    ?? : [Startheight, Endheight]
  }, {
    ?? : 400,
    EASE : 'Ease-Out'
  });
  this.animation.onfinish = () => this.onAnimationFinish (false);
  this.animation.oncancel = () => this.isclosing = false;
}

open()

open() ??? ????? ????? ? ? ?????. ? ??? ?? ???? ?????? ???? ????. ??, ??? ?????<details></details> ??? ??? ??? ???? ???? ??? ?????. ?? ????, ??? open ??? ???? ???? ????? ??? ? ???, overflow: hidden ?? ??? ?????? ???? ??? ??? ????. ?? ?? ?? ???? expand() ??? ???? ??? ?? ?????? ????.

 ?? ??() {
  this.el.style.height =`$ {this.el.offsetheight} px`;
  this.el.open = true;
  window.requestanimationFrame (() => this.expand ());
}

expand()

expand() ??? shrink() ??? ????? ?? ???? ??? ????? ?????? ???? ?? ???? ? ????. ? ??? ?????<summary></summary> ??? ?? ???? ??.

 ????() {
  this.isexpanding = true;
  const startheight =`$ {this.el.offsetheight} px`;
  const endheight =`$ {this.summary.offsetheight this.content.offsetheight} px`;
  if (this.animation) {
    this.animation.cancel ();
  }
  this.animation = this.el.animate ({{
    ?? : [Startheight, Endheight]
  }, {
    ?? : 400,
    EASE : 'Ease-Out'
  });
  this.animation.onfinish = () => this.onAnimationFinish (true);
  this.animation.oncancel = () => this.isexpanding = false;
}

onAnimationFinish()

? ??? ?????? ?? ??? ?? ? ? ?????. ?????, ????? ?? ? true ? ??? ?? ??? open ?? ? ?? ?????? ???? ???? ??? open HTML ??? ??? ? ????.

 OnanimationFinish (Open) {
  this.el.open = ??;
  this.animation = null;
  this.isclosing = false;
  this.isexpanding = false;
  this.el.style.height = this.el.style.overflow = '';
}

????? ??????

??? ???? ???????!

?? ?? ? HTML? ?? ????<details></details> ??? ???? ???? ?????. ?? ?? ??? ?????<details></details> ??? querySelectorAll ? ? ??? ?? ? ???? ????? ????.

 document.querySelectorall ( 'details'). foreach ((el) => {
  ??? ???? (EL);
});

????

??? ??? ?? ??? ?????<summary></summary> ?? ??? ?? ??? ??? ????.

?? ??, ???? ????<summary></summary> ????? ???? ?? ??? ??? ? ???? ??? ??? ??????. ?? ???? ???????. ??? ???? ????? ?????? ? ? ?? ???? ??? ??????.

???? ????<summary></summary> ?? ? ???? ???? ???? ?? ??? ??? ??????. ?? ???? ?? ??? ???? ??? ??????.

??

??? ?? ??????? JavaScript? ???? ???? ???? ?????? ??????!

??? ?? /uploads/20250331/174338369667e9ec90190a3.jpg ? ?? ??? ??? ???????. ??? ??? ?????? ?? ? ? ?????? ?? ?? ? ??? ? ????.