Node.js come alone with many Stream API. Stream is useful when handling large trunck of data. For example, we have a big file to read from file system: // create-big-file.js const fs = require('fs') const file = fs.createWriteStream('./big.file') for…
Stream: 类似这样:a.pipe(b).pipe(c); 我想写一个b.所以: var rs=new (require('stream').Readable)(); var ws=new (require('stream').Writable)(); rs._read=function(){ this.push('send a msn for the first time'); this.push('send a msn for the second time'); this.push(n…
stream在Unix系统中是个标准的概念. In computer programming, standard streams are preconnected input and output communication channels[1] between a computer program and its environment when it begins execution. The three I/O connections are called standard input …
Almost all Node.js applications, no matter how simple, use streams in some manner. 开篇先吓吓自己.画画图,分析分析代码加深自己的理解. 简单了解node stream stream基本概念 Readable - 可读取数据的流 Writable - 可写入数据的流 总结 1.stream基本概念 1.1什么是 stream 1. 在编写代码时,我们应该有一些方法将程序像连接水管一样连接起来 -- 当我们需要获取一…
就以pdsp node3 down了为例,如下 ==========================START===================================== The Whole solution of a server down or instance crash For example: Alert comes like below: Then we need to check this server status, also send mail to linux…
