Node.js fs.unlinkSync()方法
原文:https://www.geeksforgeeks.org/node-js-fs-unlinksync-method/
fs.unlinkSync()方法用于从文件系统中同步删除文件或符号链接。此函数不适用于目录，因此建议使用 fs.rmdir()删除目录。 语法:
fs.unlinkSync( path )
参数:该方法接受一个参数，如上所述，如下所述:
- 路径:它是一个字符串、缓冲区或网址，代表必须删除的文件或符号链接。
以下示例说明了 Node.js: 示例 1: 中的 fs.unlinkSync()方法本示例从文件系统中删除一个文件。
java 描述语言
// Node.js program to demonstrate the
// fs.unlinkSync() method
// Import the filesystem module
const fs = require('fs');
// Get the files in current directory
// before deletion
getFilesInDirectory();
// Delete readme.md
fs.unlinkSync("readme.md");
console.log("\nFile readme.md is deleted");
// Get the files in current directory
// after deletion
getFilesInDirectory();
// Function to get current filenames
// in directory with specific extension
function getFilesInDirectory() {
console.log("\nFiles present in directory:");
let files = fs.readdirSync(__dirname);
files.forEach(file => {
console.log(file);
});
}
输出:
Files present in directory:
index.html
index.js
package.json
readme.md
File readme.md is deleted
Files present in directory:
index.html
index.js
package.json
示例 2: 本示例从文件系统中移除符号链接。
java 描述语言
// Node.js program to demonstrate the
// fs.unlinkSync() method
// Import the filesystem module
const fs = require('fs');
// Creating symlink to file
fs.symlinkSync(__dirname + "\\readme.md", "symlinkToReadme");
console.log("\nSymbolic link to readme.md created");
// Function to get current filenames
// in directory with specific extension
getFilesInDirectory();
// Deleting symbolic link to readme.md
fs.unlinkSync("symlinkToReadme");
console.log("\nSymbolic link to readme.md deleted")
getFilesInDirectory();
// Function to get current filenames
// in directory with specific extension
function getFilesInDirectory() {
console.log("\nFiles present in directory:");
let files = fs.readdirSync(__dirname);
files.forEach(file => {
console.log(file);
});
}
输出:
Symbolic link to readme.md created
Files present in directory:
index.html
index.js
package.json
readme.md
symlinkToReadme
Symbolic link to readme.md deleted
Files present in directory:
index.html
index.js
package.json
readme.md
参考:T2】https://nodejs.org/api/fs.html#fs_fs_unlinksync_path
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