Javascript 停止Puppeter进程，直到全局var值从false变为某个字符串

我在我的nodejs服务器中运行木偶程序。。。这个想法是打开一个页面，通过socket.io读取并发送captcha给用户，当用户收到键入的captcha值时，就可以继续进行木偶游戏了。。。这是我的代码的简化版本

   var captcha = false ;

    io.on('connection' , function(socket){

        socket.on('start_puppeteer' , function (data) {
            io.emit('push_msg' , {text : 'starting puppeteer  ....  '  });
            run(io);
        })

        socket.on('get_captcha_from_client' , function (data) {

            captcha = data.text ;
            console.log( 'capthca set : ' + captcha);
        })

    });

    function get_captcha() {
        return new Promise(function(resolve , reject ) {
            if(captcha === false )
                reject(captcha );
            else
                resolve(captcha);
        });
    }


async function run(io) {
    const browser = await puppeteer.launch();
    const page = await browser.newPage();

    await page.goto('http://localhost');

    console.log( ' sending captcha to client ' );

    io.emit('send_captcha_to_client' , {text : 'captcha text'  });

    var captcha = await get_captcha();

    console.log( ' captcha confirm -> ' + captcha );

    browser.close();
}

问题是，即使设置了验证码，代码也不会移动，我也不会在控制台中获得

captcha confirm

$ node pop.js
 sending captcha to client
(node:9356) UnhandledPromiseRejectionWarning: false
(node:9356) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch().
 (rejection id: 3)
(node:9356) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
capthca set : 1234

---

page.waitForFunction

对函数求值，也就是说，您可以检查某个DOM节点的存在或输入值，但您只能访问该函数内部的页面对象

现在，如果您只想等待验证码被解决，请让您的

获取验证码

返回

承诺

并

等待其结果：

function get_captcha() {
    return new Promise(resolve => {

        // ...Do something lengthy here...

        resolve(captcha);
    });
}

async function run(io) {
    // ....

    await page.goto('http://localhost');
    io.emit('send_captcha_to_client' , {text : 'captcha text'  });
    var captcha = await get_captcha();

    // ....
}

thanx给@Vaviloff和@yaniv efraim我解决了这样的问题

var fullfillCaptcha;
var captchaPromise = new Promise(resolve => fullfillCaptcha = resolve);


    socket.on('get_captcha_from_client' , function (data) {

        fullfillCaptcha(data.text);
    })

和内部
异步函数运行

  var captcha = await captchaPromise;

thanx，我对我四处寻找并做了我认为正确的事情的承诺一无所知。。。。但我不能得到通过承诺。。。我更新了我的问题并发布了全部代码。。。请看一看