Output console logs from page.evaluate to local terminal?

Question

How can I output console logs from page.evaluate to local terminal?

await page.evaluate(() => {
    console.log("test"); // <-- I want this message to show in my local terminal

I am running my code locally on a MacOS computer.

The following solutions I have found in github issues have not worked:

solution 1

const browser = await puppeteer.launch({
    'args': ['--disable-dev-shm-usage', '--disable-software-rasterizer'],
    dumpio: true
});

// output:
// ERROR:gpu_process_transport_factory.cc(967)] Lost UI shared context.

solution 2

const browser = await puppeteer.launch({
    'args': ['--disable-dev-shm-usage', '--disable-software-rasterizer']
});

page.on('console', msg => {
    for (let i = 0; i < msg.args.length; ++i)
        console.log(`${i}: ${msg.args[i]}`);
});

// output:
// nothing

Possible duplicate of [Puppeteer log inside page.evaluate](https://stackoverflow.com/questions/46198527/puppeteer-log-inside-page-evaluate) — Vaviloff, Nov 04 '18 at 12:35
Unfortunately the accepted answer in that thread does not work for me — user1283776, Nov 08 '18 at 23:12
I have tested several of the answer and none have worked, even when trying to replicate them in a new clean app. — user1283776, Nov 08 '18 at 23:18

score 0 · Answer 1 · answered Dec 04 '19 at 19:46

Just started with Puppeteer myself. Couldn't figure it out right away, but after trying a few things, this worked for me.

const names = await page.evaluate(() => {
        let names = document.querySelectorAll("#lnkBEName");
        console.log(names);
        return names;
    })
    console.log(names);

Then console.log inside the function block doesn't work. However, the last line, outside the block works. Hope this helps someone.

Output console logs from page.evaluate to local terminal?

1 Answers1