如何将控制台输出存储为变量傀儡 [英] How to store console output as a variable Puppeteer

问题描述

将控制台输出存储为变量时遇到问题。我已经创建了一个不到20行的简短演示代码，当执行时将向我的节点控制台输出"hello how are you"，我想将此文本存储为变量。谢谢您

const puppeteer = require('puppeteer');

(async function main() {
    const browser = await puppeteer.launch({
        headless: false,
        defaultViewport: null
    });
    const Page = await browser.newPage();
    await Page.goto('https://www.google.com/');
    await Page.on('console', code => console.log(code.text()));
    await Page.evaluate(_ => {
        var b = "123"
        console.log(b);
    });

})();

推荐答案

您可以使用承诺，该承诺将在事件中解析，然后等待。

const browser = await puppeteer.launch({
    headless: false,
    defaultViewport: null
});
let resolve;
var consoleLogPromise = new Promise(x => resolve = x);
const Page = await browser.newPage();
await Page.goto('https://www.google.com/');
await Page.on('console', code => resolve(code.text()));
await Page.evaluate(test);

var output = await consoleLogPromise;
console.log(output);

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