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How to run code html in vscode

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Mar 25, 2024 pm 03:37 PM

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Running HTML code in Visual Studio Code (VSCode) is easy because HTML is essentially a static markup language that can be parsed and displayed directly in the browser. This article details the steps to run and preview HTML code in VSCode, including installing VSCode, creating HTML files, writing or editing HTML code, previewing HTML pages, and debugging JavaScript code.

How to run code html in vscode

Running HTML code in Visual Studio Code (VSCode) is relatively simple because HTML is essentially a static markup language that can be parsed directly in the browser and display. However, when you mention "running code", I'm assuming you're referring to previewing or debugging the HTML page, and possibly the JavaScript and CSS associated with it. Here are detailed steps on how to run and preview HTML code in VSCode:

Step 1: Install Visual Studio Code

First, make sure you have the latest version installed VSCode. You can download and install it from the VSCode official website (https://code.visualstudio.com/download).

Step 2: Create or open an HTML file

You can create a new HTML file or open an existing HTML file in VSCode. When creating a new file, you can click the New File icon in the sidebar or use the shortcut Ctrl N (Windows/Linux) or Cmd N (Mac). Then, when you save the file, make sure it has a .html extension, such as index.html.

Step 3: Write or edit HTML code

In the open HTML file, you can start writing or editing HTML code. A simple HTML page might look like this:

<!DOCTYPE html>  
<html>  
<head>  
    <meta charset="UTF-8">  
    <meta name="viewport" content="width=device-width, initial-scale=1.0">  
    <title>我的第一个 HTML 页面</title>  
</head>  
<body>  
    <h1 id="欢迎来到我的网站">欢迎来到我的网站</h1>  
    <p>这是一个简单的 HTML 页面示例。</p>  
</body>  
</html>

Make sure your code is complete and has no syntax errors. VSCode’s built-in syntax highlighting feature can help you identify errors in your code.

Step 4: Preview the HTML page

VSCode provides several methods to preview the HTML page:

Method 1: Use built-in browsing Browser Preview

VSCode has a built-in browser preview function, you can click the "Go Live" button in the upper right corner of the editor or use the shortcut Alt B (Windows/Linux) or Shift Cmd P Then type Live Server: Open with Live Server (Mac) to start a local server and preview your page. This requires a plugin called "Live Server", if you haven't installed it yet, follow these steps:

Open VSCode's extension store (by clicking the square icon on the sidebar or pressing Ctrl Shift X /Cmd Shift X).

Enter "Live Server" in the search box.

Find the "Live Server" plug-in from the search results and click the "Install" button.

After the installation is complete, you can start Live Server and preview your HTML page through the above method. Live Server automatically refreshes your browser when you save a file, allowing you to see the effects of your code changes in real time.

Method 2: Open in an external browser

Another way to preview an HTML page is to open the file directly in an external browser. You can open the file by right-clicking on the HTML file in the editor and selecting "Open in browser" or using the shortcut Ctrl Click (Windows/Linux) or Cmd Click (Mac). VSCode will try to open the file using your default browser. However, please note that this approach may not load associated CSS or JavaScript files, especially if they are referenced via relative paths.

Step 5: Debug JavaScript code (optional)

If your HTML page contains JavaScript code and you want to debug the code, you can use VSCode built-in debugger. First, you need to set up a launch.json configuration file in your project to define the debugging environment. VSCode provides a wizard for creating this file. Typically, you start this process by clicking the Run & Debug icon on the sidebar (or using the shortcut Ctrl Shift D / Cmd Shift D) and then clicking Create a launch.json file. Select "Chrome" or another browser you use as the debug target and configure the appropriate options. You can then set breakpoints in your JavaScript code and start a debugging session to step through the code.

Summary

Running HTML code in VSCode mainly involves writing and previewing HTML pages. Although the HTML itself does not need to be compiled or executed, it is easy to see the rendering of the page using Live Server or opening the file directly in the browser. For complex pages containing JavaScript, VSCode's debugging function can help you debug the code. By making proper use of VSCode's features and plug-ins, you can develop HTML projects more efficiently.

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