深度理解nodejs[3]—疯狂事件代码-创新互联

const https = require('https');
const start = Date.now();
const fs = require('fs');
const crypto = require('crypto');
function dorequest(){
 https.request('https://www.baidu.com',res=>{
   res.on('data',()=>{});
   res.on('end',()=>{
     console.log(Date.now()-start);
   });
 })
 .end();
}


function dohash(){
 crypto.pbkdf2('a','b',100000,512,'sha512',()=>{
   console.log('hash:',Date.now()-start);
 });
}

dorequest();

fs.readFile('test.js','utf8',()=>{
 console.log('FS:',Date.now()-start);
});
dohash();
dohash();
dohash();
dohash();

42
hash: 785
FS: 785
hash: 788
hash: 790
hash: 790