📜  Node.js fs.dirent.name 属性

📅  最后修改于: 2022-05-13 01:56:40.210000             🧑  作者: Mango

Node.js fs.dirent.name 属性

fs.Dirent.name属性是文件系统模块中fs.Dirent类的内置应用程序编程接口,用于提供特定 dirent 的名称。

句法:

const dirent.name

参数:此属性不接受任何参数。
返回值:此属性返回特定目录的名称。

下面的程序说明了 Node.js 中fs.dirent.name属性的使用:

示例 1:文件名:index.js

Javascript
// Node.js program to demonstrate the
// dirent.name property
const fs = require('fs');
 
// Initiating async function
async function stop(path) {
 
    // Creating and initiating dir's
    // underlying resource handle
    const dir = await
        fs.promises.opendir(path);
 
    // Synchronously reading the dir's
    // underlying resource handle
    // using readSync() method
    for (var i = 0; i <= 6; i++) {
 
        // Checking if the particular
        // dirent is SymbolicLink or
        // not by using name() method
        const value = (dir.readSync()).name;
 
        // Display the result
        console.log(value);
    }
}
 
// Catching error
stop('./').catch(console.error);


Javascript
// Node.js program to demonstrate the
// dirent.name property
const fs = require('fs');
 
// Initiating async function
async function stop(path) {
 
    let dir = null;
 
    try {
 
        // Creating and initiating directory's
        // underlying resource handle
        dir = await fs.promises.opendir(
            new URL('file:///F:/java/'));
 
        // Synchronously reading the File's
        // underlying resource handle
        // using readSync() method
        for (var i = 0; i <= 3; i++) {
 
            // Checking if the particular dirent
            // is File or not by using isFile() method
            const value = (dir.readSync()).name;
 
            // Display the result
            console.log(dir.readSync());
            console.log(value);
        }
    } finally {
 
        if (dir) {
 
            // Display the result
            console.log("dir is closed successfully");
 
            // Synchronously closeSyncing the
            // directory's underlying resource handle
            const promise = dir.closeSync();
        }
    }
}
 
// Catching error
stop('./').catch(console.error);


使用以下命令运行index.js文件:

node index.js

输出:

abcd.cer
cert.cer
certfile.cer
certificate1.cer
example.txt
features
filename.txt

示例 2:文件名:index.js

Javascript

// Node.js program to demonstrate the
// dirent.name property
const fs = require('fs');
 
// Initiating async function
async function stop(path) {
 
    let dir = null;
 
    try {
 
        // Creating and initiating directory's
        // underlying resource handle
        dir = await fs.promises.opendir(
            new URL('file:///F:/java/'));
 
        // Synchronously reading the File's
        // underlying resource handle
        // using readSync() method
        for (var i = 0; i <= 3; i++) {
 
            // Checking if the particular dirent
            // is File or not by using isFile() method
            const value = (dir.readSync()).name;
 
            // Display the result
            console.log(dir.readSync());
            console.log(value);
        }
    } finally {
 
        if (dir) {
 
            // Display the result
            console.log("dir is closed successfully");
 
            // Synchronously closeSyncing the
            // directory's underlying resource handle
            const promise = dir.closeSync();
        }
    }
}
 
// Catching error
stop('./').catch(console.error);

使用以下命令运行index.js文件:

node index.js

输出:

Dirent { name: 'books.txt', [Symbol(type)]: 1 }
abcd.cer
Dirent { name: 'certfile.cer', [Symbol(type)]: 1 }
cert.cer
Dirent { name: 'example.com_index.html', [Symbol(type)]: 1 }
certificate1.cer
Dirent { name: 'features', [Symbol(type)]: 2 }
example.txt

参考: https://nodejs.org/dist/latest-v12.x/docs/api/fs.html#fs_dirent_name