TODAY WAS A GOOD DAY

CALLBACK Callbacks are functions that are executed asynchronously, or at a later time. Instead of the code reading top to bottom procedurally, async programs may execute different functions at diff

Learn to compose streaming interfaces with .pipe(). MEET PIPE 参数输入，标准stdout输出 var fs = require('fs'); fs.createReadStream(process.argv[2]).pipe(process.stdout); INPUT OUTPUT stdin输入，stdin