Javascript 使用Puppeter在Node.js中同步打印

我正在尝试在Node.js中编写同步代码

function func1(fn) { 
  const puppeteer = require('puppeteer');
  var If = require('If');
  var async = require("async");

  (async () => {


    const browser = await puppeteer.launch({
      headless: false
    });
    const page = await browser.newPage();

    // Open page.
    await page.goto("https://www.google.com/");

  })();
  fn();
}

func1(function(){ 
  console.log('world');
}); 

---

我想先打开Google页面，当我关闭它时，程序应该打印：

world

在Puppeter事件的回调中调用您的

fn

。
下面的代码对我来说很好：

function func1(fn) {
  const puppeteer = require('puppeteer');

  (async () => {
    const browser = await puppeteer.launch({
      headless: false
    });

    const page = await browser.newPage();

    // Open page.
    await page.goto("https://www.google.com/");

    browser.on('disconnected', () => {
      fn();
    });

  })();

}

func1(function(){
  console.log('world');
});

---

您可以将

func1

设置为异步，然后可以设置内部匿名异步函数：

async function func1 (fn) {
  const puppeteer = require('puppeteer');
  var If          = require('If');
  var async       = require('async');

  await (async () => {
    const browser = await puppeteer.launch({headless: false});
    const page    = await browser.newPage();

    await page.goto('https://www.google.com/');
  })();

  fn();
}

func1(function () {
  console.log('world');
});