nodejs delete non-empty directory

Node.js is a JavaScript runtime that runs JavaScript code on the server side. In Node.js, you can perform file system operations using the "fs" module. These file system operations include deleting directories.

In Node.js, use the "rmdir" function of the "fs" module to delete a directory. However, if the directory is not empty, you cannot delete it directly. You need to recursively delete all files and subdirectories in the directory before deleting the directory itself. Here is an example code snippet for recursively deleting all files and subdirectories in a directory:

const fs = require('fs');
const path = require('path');

function deleteFolderRecursive(folderPath) {
    if (fs.existsSync(folderPath)) {
        fs.readdirSync(folderPath).forEach((file, index) => {
            const curPath = path.join(folderPath, file);
            if (fs.lstatSync(curPath).isDirectory()) {
                // 递归删除子目录
                deleteFolderRecursive(curPath);
            } else {
                // 删除文件
                fs.unlinkSync(curPath);
            }
        });
        // 删除空目录
        fs.rmdirSync(folderPath);
    }
}

This function checks if the directory exists and, if it does, reads all files and subdirectories in the directory. For each file and subdirectory, it checks the file type. If it is a directory, the function is called recursively to delete the subdirectory. Otherwise, if it is a file, use the "unlinkSync" function to delete the file. After all files and subdirectories have been processed, the function uses the "rmdirSync" function to delete the directory itself.

Use this function to delete non-empty directories. Here is a sample code snippet for calling this function and deleting a directory:

const fs = require('fs');
const path = require('path');

const folderPath = '<folder_path>'; // 替换为要删除的目录的路径
deleteFolderRecursive(folderPath);

In this code snippet, replace the "folderPath" variable with the path to the directory you want to delete. The "deleteFolderRecursive" function is then called to recursively delete the directory and all its contents.

In summary, the "fs" module in Node.js provides methods to delete directories and files. The "rmdir" function can delete directories, but not non-empty directories. To delete a non-empty directory, you need to write a recursive function that deletes all files and subdirectories, and then deletes the directory itself. Using the above code snippet you can easily delete non-empty directories.

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