writeStream.rows属性是tty模块中WriteStream类的内置应用程序编程接口,该接口用于获取此write Stream对象具有的行数。
用法:
const writeStream.rows
参数:此属性不包含任何参数。
返回值:此属性返回此写入Stream对象具有的行数。
范例1: 文件名:index.js
// Node.js program to demonstrate the
// writeStream.rows property
// 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 number of rows
// by using rows API
const col = WriteStream.rows;
// Displaying the result
process.stdout.write(msg + col);
// Exiting process
process.exit();
})
// Binding server with port
.bind(1234, () => {
});
// Client sending message to server
client.send("Number of rows:- ",
0, 21, 1234, "localhost");
输出:
Number of rows:- 10
范例2: 文件名:index.js
// Node.js program to demonstrate the
// writeStream.rows property
// Creating and initializing a
// WriteStream object
let WriteStream = process.stdout;
// Getting number of rows
// by using rows API
const col = WriteStream.rows;
// Displaying the result
console.log("Number of rows:- " + col);
使用以下命令运行index.js文件:
node index.js
输出:
Number of rows:- 10
参考:https://nodejs.org/dist/latest-v12.x/docs/api/tty.html#tty_writestream_rows
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注:本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 Node.js writeStream.rows Property。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。