JavaScript json conversion-Front-end Q&A-php.cn

Home

Web Front-end

Front-end Q&A

JavaScript json conversion

PHPz

May 22, 2023 am 09:20 AM

Detailed tutorial on converting into HTML tables

In front-end development, using JavaScript and JSON are very common technologies. Converting JSON data into HTML tables to display data is a very practical function. This article will introduce how to use JavaScript to convert JSON data into HTML tables.

Create JSON data

First, we need to create a JSON object containing the data. The following is a simple example:

var data = [
  {"name": "John", "age": 26, "gender": "Male"},
  {"name": "Lucy", "age": 23, "gender": "Female"},
  {"name": "Tom", "age": 30, "gender": "Male"}
];

Create the basic structure of an HTML table

In the HTML file, we need to create the basic structure of a table, including the header and Form body. The following is an example of a basic table structure:

<table id="myTable">
  <thead>
    <tr>
      <th>Name</th>
      <th>Age</th>
      <th>Gender</th>
    </tr>
  </thead>
  <tbody>
  </tbody>
</table>

In this example, we create a basic table structure that contains a table header and a table body. The header contains three columns: Name, Age and Gender. We will add the content of the table body dynamically using JavaScript in the next steps.

Use JavaScript to dynamically generate the table body

Next, we need to use JavaScript to dynamically generate the table body. The following is a code example:

var table = document.getElementById("myTable");
var tbody = table.getElementsByTagName("tbody")[0];

for (var i = 0; i < data.length; i++) {
  var row = document.createElement("tr");

  var nameCell = document.createElement("td");
  var nameText = document.createTextNode(data[i].name);
  nameCell.appendChild(nameText);
  row.appendChild(nameCell);

  var ageCell = document.createElement("td");
  var ageText = document.createTextNode(data[i].age);
  ageCell.appendChild(ageText);
  row.appendChild(ageCell);

  var genderCell = document.createElement("td");
  var genderText = document.createTextNode(data[i].gender);
  genderCell.appendChild(genderText);
  row.appendChild(genderCell);

  tbody.appendChild(row);
}

In this example, we first get the table element through the id, and then get the table body element. Next, we use a for loop to loop through each object in the JSON data and add three table cells to each row: name, age, and gender. Finally, we add each row to the table body.

Complete HTML file code

<!DOCTYPE html>
<html>
<head>
  <title>JSON to HTML Table</title>
</head>
<body>
  <table id="myTable">
    <thead>
      <tr>
        <th>Name</th>
        <th>Age</th>
        <th>Gender</th>
      </tr>
    </thead>
    <tbody>
    </tbody>
  </table>

  <script>
    var data = [
      {"name": "John", "age": 26, "gender": "Male"},
      {"name": "Lucy", "age": 23, "gender": "Female"},
      {"name": "Tom", "age": 30, "gender": "Male"}
    ];

    var table = document.getElementById("myTable");
    var tbody = table.getElementsByTagName("tbody")[0];

    for (var i = 0; i < data.length; i++) {
      var row = document.createElement("tr");

      var nameCell = document.createElement("td");
      var nameText = document.createTextNode(data[i].name);
      nameCell.appendChild(nameText);
      row.appendChild(nameCell);

      var ageCell = document.createElement("td");
      var ageText = document.createTextNode(data[i].age);
      ageCell.appendChild(ageText);
      row.appendChild(ageCell);

      var genderCell = document.createElement("td");
      var genderText = document.createTextNode(data[i].gender);
      genderCell.appendChild(genderText);
      row.appendChild(genderCell);

      tbody.appendChild(row);
    }
  </script>
</body>
</html>

Extended function: use jQuery AJAX to get JSON data

If the JSON data comes from the background service, we can use jQuery AJAX to get JSON data. The following is a sample code:

$.ajax({
  url: 'your_data_url',
  type: 'GET',
  dataType: 'json',
  success: function(data) {
    var table = document.getElementById("myTable");
    var tbody = table.getElementsByTagName("tbody")[0];

    for (var i = 0; i < data.length; i++) {
      var row = document.createElement("tr");

      var nameCell = document.createElement("td");
      var nameText = document.createTextNode(data[i].name);
      nameCell.appendChild(nameText);
      row.appendChild(nameCell);

      var ageCell = document.createElement("td");
      var ageText = document.createTextNode(data[i].age);
      ageCell.appendChild(ageText);
      row.appendChild(ageCell);

      var genderCell = document.createElement("td");
      var genderText = document.createTextNode(data[i].gender);
      genderCell.appendChild(genderText);
      row.appendChild(genderCell);

      tbody.appendChild(row);
    }
  }
});

In this example, we use jQuery's ajax method to get the data. We will get the data from the data url you provided, and the data type is JSON format. Once we successfully get the data, we use the previous code to convert it into an HTML table.

Conclusion

In this article, we learned how to use JavaScript and JSON to display data into HTML tables. This is a very important skill for front-end developers who need to display data. I hope that through the introduction of this article, you have understood how to implement this function and can apply it in your own projects.

The above is the detailed content of JavaScript json conversion. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Frontend Development with React: Advantages and TechniquesApr 17, 2025 am 12:25 AM

The advantages of React are its flexibility and efficiency, which are reflected in: 1) Component-based design improves code reusability; 2) Virtual DOM technology optimizes performance, especially when handling large amounts of data updates; 3) The rich ecosystem provides a large number of third-party libraries and tools. By understanding how React works and uses examples, you can master its core concepts and best practices to build an efficient, maintainable user interface.

React vs. Other Frameworks: Comparing and Contrasting OptionsApr 17, 2025 am 12:23 AM

React is a JavaScript library for building user interfaces, suitable for large and complex applications. 1. The core of React is componentization and virtual DOM, which improves UI rendering performance. 2. Compared with Vue, React is more flexible but has a steep learning curve, which is suitable for large projects. 3. Compared with Angular, React is lighter, dependent on the community ecology, and suitable for projects that require flexibility.

Demystifying React in HTML: How It All WorksApr 17, 2025 am 12:21 AM

React operates in HTML via virtual DOM. 1) React uses JSX syntax to write HTML-like structures. 2) Virtual DOM management UI update, efficient rendering through Diffing algorithm. 3) Use ReactDOM.render() to render the component to the real DOM. 4) Optimization and best practices include using React.memo and component splitting to improve performance and maintainability.

React in Action: Examples of Real-World ApplicationsApr 17, 2025 am 12:20 AM

React is widely used in e-commerce, social media and data visualization. 1) E-commerce platforms use React to build shopping cart components, use useState to manage state, onClick to process events, and map function to render lists. 2) Social media applications interact with the API through useEffect to display dynamic content. 3) Data visualization uses react-chartjs-2 library to render charts, and component design is easy to embed applications.

Frontend Architecture with React: Best PracticesApr 17, 2025 am 12:10 AM

Best practices for React front-end architecture include: 1. Component design and reuse: design a single responsibility, easy to understand and test components to achieve high reuse. 2. State management: Use useState, useReducer, ContextAPI or Redux/MobX to manage state to avoid excessive complexity. 3. Performance optimization: Optimize performance through React.memo, useCallback, useMemo and other methods to find the balance point. 4. Code organization and modularity: Organize code according to functional modules to improve manageability and maintainability. 5. Testing and Quality Assurance: Testing with Jest and ReactTestingLibrary to ensure the quality and reliability of the code

React Inside HTML: Integrating JavaScript for Dynamic Web PagesApr 16, 2025 am 12:06 AM

To integrate React into HTML, follow these steps: 1. Introduce React and ReactDOM in HTML files. 2. Define a React component. 3. Render the component into HTML elements using ReactDOM. Through these steps, static HTML pages can be transformed into dynamic, interactive experiences.

The Benefits of React: Performance, Reusability, and MoreApr 15, 2025 am 12:05 AM

React’s popularity includes its performance optimization, component reuse and a rich ecosystem. 1. Performance optimization achieves efficient updates through virtual DOM and diffing mechanisms. 2. Component Reuse Reduces duplicate code by reusable components. 3. Rich ecosystem and one-way data flow enhance the development experience.

React: Creating Dynamic and Interactive User InterfacesApr 14, 2025 am 12:08 AM

React is the tool of choice for building dynamic and interactive user interfaces. 1) Componentization and JSX make UI splitting and reusing simple. 2) State management is implemented through the useState hook to trigger UI updates. 3) The event processing mechanism responds to user interaction and improves user experience.

See all articles

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

R.E.P.O. Best Graphic Settings

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Assassin's Creed Shadows: Seashell Riddle Solution

2 weeks agoByDDD

R.E.P.O. How to Fix Audio if You Can't Hear Anyone

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

R.E.P.O. Chat Commands and How to Use Them

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software