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node.js Stream writable.writableCorked用法及代碼示例


writable.writableCorked屬性是Stream模塊的內置應用程序編程接口,該接口用於檢查調用uncork()函數所需的次數,以便完全取消插播流。

用法:

writable.writableCorked 

返回值:它返回一個表示可寫次數的整數值。需要調用uncork()。


以下示例說明了Node.js中writable.writableCorked屬性的使用:

範例1:

// Node.js program to demonstrate the      
// writable.writableCorked Property 
  
// Accessing stream module 
const stream = require('stream'); 
  
// Creating a stream and creating  
// a write function 
const writable = new stream.Writable({ 
  
  // Write function with its  
  // parameters 
  write:function(chunk, encoding, next) { 
  
    // Converting the chunk of 
    // data to string 
    console.log(chunk.toString()); 
    next(); 
  } 
}); 
  
// Calling cork function 
writable.cork(); 
  
// Writing data 
writable.write('hi'); 
  
// Again calling cork function 
writable.cork(); 
  
// Again writing some data 
writable.write('GFG'); 
  
// Calling writable.writableCorked  
// Property 
writable.writableCorked;

輸出:

2

範例2:

// Node.js program to demonstrate the      
// writable.writableCorked Property 
  
// Accessing stream module 
const stream = require('stream'); 
  
// Creating a stream and creating  
// a write function 
const writable = new stream.Writable({ 
  
  // Write function with its  
  // parameters 
  write:function(chunk, encoding, next) { 
  
    // Converting the chunk of 
    // data to string 
    console.log(chunk.toString()); 
    next(); 
  } 
}); 
  
// Calling cork function 
writable.cork(); 
  
// Writing data 
writable.write('hi'); 
  
// Calling uncork() function 
writable.uncork(); 
  
// Again calling cork function 
writable.cork(); 
  
// Again writing some data 
writable.write('GFG'); 
  
// Calling writable.writableCorked  
// Property 
writable.writableCorked;

輸出:

hi
1

在上麵的示例中,我們已經調用了uncork()函數一次。因此,為了完全解開流,您隻需要調用uncork()函數一次,輸出為1。

參考: https://nodejs.org/api/stream.html#stream_writable_writablecorked



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注:本文由純淨天空篩選整理自nidhi1352singh大神的英文原創作品 Node.js | Stream writable.writableCorked Property。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。