• 1. 当前路径
     console.log(process.cwd())
• 2.执行函数

process.nextTick(()=>{
    console.log("NextTick");
});//执行最早，插入当前队列的最后

setTimeout(() => {
    console.log('timeout');
}, 0);//执行时间介于前后两者

setImmediate(()=>{
    console.log('setImmediate');
});//较晚

• 3.调试
  运行文件，并在开始处暂停

node --inspect-brk yourfile.js

打开Chrome
输入网址chrome://inspect/,选中target，然后inspect即可。

PATH模块

• normalize将路径规范化，支持../层级访问

const {normalize}=require('path');
console.log(normalize('C:\\users\\\\a.text'));

• join自动拼接路径

const {join}=require('path');
console.log(join('C:\\','a.txt'));

• resolve将相对路径解析为全局路径

const {resolve}=require('path');
console.log(resolve('./'));

• basename,dirname,extname

const {basename,dirname,extname}=require('path');
const filepath='C:\\project\\a.txt';
console.log(basename(filepath));
console.log(dirname(filepath));
console.log(extname(filepath));

结果

a.txt
C:\project
.txt