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Node.js stats.nlink屬性用法及代碼示例

stats.nlink屬性是fs.Stats類的內置應用程序編程接口,用於獲取文件的hard-links數。

用法:

stats.nlink;

返回值:它返回一個數字或BigInt值,該值表示文件的hard-links。

以下示例說明了Node.js中stats.nlink屬性的用法:

範例1:



// Node.js program to demonstrate the    
// stats.nlink property 
  
// Accessing fs module 
const fs = require('fs'); 
  
// Calling fs.Stats stats.nlink for  
// files using stat 
fs.stat('./filename.txt', (err, stats) => { 
  if (err) throw err; 
  console.log("using stat:number of "
    + "hard-links for the file is "
    + stats.nlink); 
}); 
   
// Using lstat 
fs.lstat('./filename.txt', (err, stats) => { 
  if (err) throw err; 
  console.log("using lstat:number of "
    + "hard-links for the file is "
    + stats.nlink); 
}); 
  
// For directories 
// Using stat 
fs.stat('./', (err, stats) => { 
  if (err) throw err; 
  console.log("using stat:number of "
    + "hard-links for the file is "
    + stats.nlink); 
}); 
   
// Using lstat 
fs.lstat('./', (err, stats) => { 
  if (err) throw err; 
  console.log("using lstat:number of "
    + "hard-links for the file is "
    + stats.nlink); 
});

輸出:

using stat:number of hard-links for the file is  1
using lstat:number of hard-links for the file is  1
using stat:number of hard-links for the file is  1
using lstat:number of hard-links for the file is  1

範例2:

// Node.js program to demonstrate the    
// stats.nlink property 
  
// Accessing fs module 
const fs = require('fs').promises; 
  
// Calling fs.Stats stats.nlink 
(async () => { 
    const stats = await fs.stat('./filename.txt'); 
    console.log("using stat synchronous:number "
        + "of hard-links for the file is "
        + stats.nlink); 
})().catch(console.error)

輸出:

(node:13780) ExperimentalWarning:The fs.promises API 
is experimental 
using stat synchronous:number of hard-links for the file is 1

注意:上麵的程序將通過使用node filename.js命令並正確使用file_path。

參考: https://nodejs.org/api/fs.html#fs_stats_nlink




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注:本文由純淨天空篩選整理自anwesha0107大神的英文原創作品 Node.js stats.nlink Property from fs.Stats Class。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。