event.mjs

//import EventEmitter from "node:events";
//class Emitter extends EventEmitter{}
/* const myE=new Emitter()
myE.once('foo',()=>console.log('an events'))
myE.once('foo',()=>console.log('an events 2'))
myE.once('foo',(x)=>console.log(`an event  ${x}`))
myE.once('boo',()=>console.log('boom event'))
myE.emit('foo')
myE.emit('foo')
console.log(myE); */
import fs from "fs/promises";
(async () => {
    console.time('write');
    const fd=await fs.open('./Node.js-Express-Course-Build-4-Projects.mp4','r')
    const stream= fd.createReadStream()
    stream.on('data',chunk=>{
        console.log(chunk);
        
    })
    stream.on('end',()=>{
        console.log('done');
        console.timeEnd('write')
    })
    stream.on('error',err=>{
        throw err
    })
    
})()