<html>
<head>
  <title>Product Lookup Program</title>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css">
</head>
<body>
  <div class="container">
    <h1 class="mt-4">Product Lookup Program</h1>
    
    <form id="productForm" class="mt-4">
      <div class="mb-3">
        <label for="productName" class="form-label">Product Name</label>
        <input type="text" class="form-control" id="productName" required>
      </div>
      <div class="mb-3">
        <label for="productPrice" class="form-label">Product Price</label>
        <input type="number" class="form-control" id="productPrice" required>
      </div>
      <button type="submit" class="btn btn-primary">Save Product</button>
    </form>
    
    <div id="productList" class="mt-4">
      <h3>Product List</h3>
      <table class="table">
        <thead>
          <tr>
            <th scope="col">#</th>
            <th scope="col">Product Name</th>
            <th scope="col">Product Price</th>
            <th scope="col">Actions</th>
          </tr>
        </thead>
        <tbody id="productTableBody">
          <!-- Product Table Rows will be dynamically added here -->
        </tbody>
      </table>
    </div>

    <div id="searchProduct" class="mt-4">
      <h3>Search Product</h3>
      <div class="mb-3">
        <label for="searchProductName" class="form-label">Product Name</label>
        <input type="text" class="form-control" id="searchProductName" required>
      </div>
      <button type="button" class="btn btn-primary" onclick="searchProduct()">Search</button>
    </div>

    <div id="searchResult" class="mt-4">
      <h3>Search Result</h3>
      <p id="searchResultPrice"></p>
    </div>
  </div>

  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js"></script>
  <script>
    // Array to store the products
    let products = [];

    // Function to render the product list
    function renderProductList() {
      const productList = document.getElementById("productTableBody");
      productList.innerHTML = "";

      products.forEach((product, index) => {
        const row = document.createElement("tr");
        row.innerHTML = `
          <th scope="row">${index + 1}</th>
          <td>${product.name}</td>
          <td>${product.price}</td>
          <td>
            <button class="btn btn-sm btn-primary" onclick="editProduct(${index})">Edit</button>
            <button class="btn btn-sm btn-danger" onclick="deleteProduct(${index})">Delete</button>
          </td>
        `;

        productList.appendChild(row);
      });
    }

    // Function to add a new product
    function addProduct(event) {
      event.preventDefault();

      const productName = document.getElementById("productName").value;
      const productPrice = document.getElementById("productPrice").value;

      products.push({ name: productName, price: productPrice });

      renderProductList();
      document.getElementById("productForm").reset();
    }

    // Function to edit a product
    function editProduct(index) {
      const productName = prompt("Enter the new name for the product");
      const productPrice = prompt("Enter the new price for the product");

      if (productName && productPrice) {
        products[index].name = productName;
        products[index].price = productPrice;

        renderProductList();
      }
    }

    // Function to delete a product
    function deleteProduct(index) {
      const confirmDelete = confirm("Are you sure you want to delete this product?");

      if (confirmDelete) {
        products.splice(index, 1);
        renderProductList();
      }
    }

    // Function to search for a product
    function searchProduct() {
      const searchProductName = document.getElementById("searchProductName").value;
      const searchResultPrice = document.getElementById("searchResultPrice");

      const product = products.find(product => product.name.toLowerCase() === searchProductName.toLowerCase());
      
      if (product) {
        searchResultPrice.textContent = `Price: ${product.price}`;
      } else {
        searchResultPrice.textContent = "Product not found";
      }
    }

    // Add form submission event listener
    document.getElementById("productForm").addEventListener("submit", addProduct);
  </script>
</body>
</html>
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About HTML

HTML(Hyper Text Markup language) is the standard markup language for Web pages, was created by Berners-Lee in the year 1991. Almost every web page over internet might be using HTML.

Syntax help

Fundamentals

  • Any HTML document must start with document declaration <!DOCTYPE html>
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HTML Elements and Attributes

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CSS(cascading style sheets) describes how HTML elements will look on the web page like color, font-style, font-size, background color etc.

Example:

Below is a sample style sheet which displays heading in green and in Candara font with padding space of 25px.

body{
  padding: 25px;
}
.title {
	color: #228B22;
	font-family: Candara;
}

HTML Tables

  • HTML Tables are defined in <table> tag.
  • Table row should be defined in <tr> tag
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HTML-Javascript

  • Javascript is used in HTML pages to make them more interactive.
  • <script> is the tag used to write scripts in HTML
  • You can either reference a external script or write script code in this tag.

Example

<script src="script.js"></script>