Node.js writeStream.getWindowSize()用法及代碼示例

writeStream.getWindowSize()方法是tty模塊中類WriteStream的內置應用程序編程接口，用於獲取與此WriteStream對象相對應的TTY的大小。

用法:

writeStream.getWindowSize()

參數：此方法不接受任何參數。

返回值：此方法返回[numColumns，numRows]類型的數組，其中包含numColumns和numRows。

範例1： 文件名：index.js

// Node.js program to demonstrate the 
// writeStream..getWindowSize()  API 
  
// Importing dgram module 
var dgram = require('dgram'); 
  
// Creating and initializing client 
// and server socket 
var client = dgram.createSocket("udp4"); 
var server = dgram.createSocket("udp4"); 
  
// Handling the message event 
server.on("message", function (msg) { 
  
  // Creating and initializing a 
  // WriteStream object 
  let WriteStream = process.stdout; 
  
  // Getting window size of this write stream 
  // object by using .getWindowSize() API 
  const col = WriteStream.getWindowSize(); 
  
  // Displaying the result 
  process.stdout.write(msg + col[0]); 
  
  // Exiting process 
  process.exit(); 
})// Binding server with port 
.bind(1234, () => { 
}); 
  
// Client sending message to server 
client.send("number columns of writestream:-  ", 0, 
50, 1234, "localhost");

輸出：

number columns of writestream:-  182

範例2： 文件名：index.js

// Node.js program to demonstrate the 
// writeStream..getWindowSize()  API 
  
// Creating and initializing a WriteStream object 
let WriteStream = process.stdout; 
  
// Getting window size of this write stream 
// object by using .getWindowSize() method 
const col = WriteStream.getWindowSize(); 
  
// Displaying the result 
console.log("number rows of writestream:-  " + col[1]);

使用以下命令運行index.js文件：

node index.js

輸出：

number rows of writestream:-  14

參考： https://nodejs.org/dist/latest-v12.x/docs/api/tty.html#tty_writestream_getwindowsize

相關用法

注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 Node.js writeStream.getWindowSize() Method。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。