如何將控制台輸出存儲為變量 Puppeteer

Question

我在將控制台輸出存儲為變量時遇到問題。 我創建了一個不到 20 行代碼的簡短演示，執行時將輸出“你好，你好嗎”到我的節點控制台，我想將此文本存儲為變量。 謝謝

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);
    });

})();

Answer 1

您可以使用承諾，它將在事件上得到解決，然后等待它。

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);