JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="zh-Hant">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>商品列表 - 排序與恢復原始順序</title>
<link href="https://cdn.jsdelivr.net/npm/daisyui@4.12.10/dist/full.min.css" rel="stylesheet" type="text/css" />
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body class="p-6 bg-gray-100">

<h1 class="text-2xl font-bold mb-4">商品排序</h1>

<div class="mb-4 space-x-2">
  <button id="originBtn" class="btn btn-secondary">恢復原始順序</button>
  <button id="ascBtn" class="btn btn-accent">價格升序</button>
  <button id="descBtn" class="btn btn-accent">價格降序</button>
</div>

<div id="productList" class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-6"></div>

<script>
// 原始商品資料
const products = [
  { name: "可樂", price: 35, desc: "經典汽水", img: "https://picsum.photos/300/200?41" },
  { name: "果汁", price: 25, desc: "天然水果", img: "https://picsum.photos/300/200?42" },
  { name: "礦泉水", price: 15, desc: "清涼解渴", img: "https://picsum.photos/300/200?43" },
];

// ✅ 在一開始「複製一份原始順序」
// slice(0) 會回傳一個新陣列（淺拷貝）
const originalProducts = products.slice(0);

// 頁面元素
const container = document.getElementById("productList");
const originBtn = document.getElementById("originBtn");
const ascBtn = document.getElementById("ascBtn");
const descBtn = document.getElementById("descBtn");

// 顯示商品的函式
function render(list){
  container.innerHTML = "";
  for(let i=0; i<list.length; i++){
    const p = list[i];
    container.innerHTML +=
      '<div class="card bg-base-100 shadow-xl">' +
        '<figure><img src="' + p.img + '" alt="' + p.name + '"></figure>' +
        '<div class="card-body">' +
          '<h2 class="card-title">' + p.name + '</h2>' +
          '<p>' + p.desc + '</p>' +
          '<p class="text-red-500 font-bold">價格：' + p.price + ' 元</p>' +
        '</div>' +
      '</div>';
  }
}

// 初始顯示
render(products);

// 🔄...