使用 puppeteer 时，启动浏览器后打开新页面是否更快，或者我应该尝试使用当前加载的选项卡

Question

Here's my current code:

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

and then i do all my puppeteer stuff. The issue is, this opens 2 tabs: one when the browser gets launched, and one when you call the newpage function. Would it be faster/worthwhile to do this instead?

const browser = await puppeteer.launch({...});

const getPages = await browser.pages();
const page = getPages[0];

This loads the browser and accesses the tab that is already open. Is this better practice or does it not really make a difference?

Answer 1

我更喜欢使用第一页而不是打开一个新页面，这比打开一个新页面要快，但我认为这并不能真正提高性能和速度。

const [ page ] = await browser.pages();

Answer 2

If you are loading multiple pages it is recommended to use the context API (see here for docs ):

// Create a new incognito browser context
const context = await browser.createIncognitoBrowserContext();
// Create a new page inside context.
const page = await context.newPage();
// ... do stuff with page ...
await page.goto('https://example.com');
// Dispose context once it's no longer needed.
await context.close();