puppeteer常用API

https://github.com/GoogleChrome/puppeteer/blob/master/docs/api.md

Puppeteer是一个node库，他提供了一组用来操纵Chrome的API（默认headless也就是无UI的chrome，也可以配置为有UI）

Puppeteer(中文翻译”木偶”) 是 Google Chrome 团队官方的无界面（无头或无脑Headless）Chrome 工具，它是一个 Node 库，提供了一个高级的 API 来控制 DevTools协议上的无头版 Chrome 。也可以配置为使用完整（非无头）的 Chrome。Chrome 素来在浏览器界稳执牛耳，因此，Chrome Headless 必将成为 web 应用自动化测试的行业标杆。使用 Puppeteer，相当于同时具有 Linux 和 Chrome 双端的操作能力，应用场景可谓非常之多。此仓库的建立，即是尝试各种折腾使用 GoogleChrome Puppeteer；以期在好玩的同时，学到更多有意思的操作。

作用和Selenium相似，但是不能跨平台，只能用在chrome做自动化测试

官网：

https://github.com/GoogleChrome/puppeteer

大纲：

• Installation
• Usage
• Default runtime settings
• API Documentation
• Debugging tips
• FAQ

Q: What is the difference between Puppeteer, Selenium / WebDriver, and PhantomJS?

Selenium / WebDriver is a well-established cross-browser API that is useful for testing cross-browser support.

Puppeteer works only with Chromium or Chrome. However, many teams only run unit tests with a single browser (e.g. PhantomJS). In non-testing use cases, Puppeteer provides a powerful but simple API because it's only targeting one browser that enables you to rapidly develop automation scripts.

Puppeteer bundles the latest versions of Chromium.

Q: Why is the Chrome team building Puppeteer?

The goals of the project are simple:

• Provide a slim, canonical library that highlights the capabilities of the DevTools Protocol.
• Provide a reference implementation for similar testing libraries. Eventually, these other frameworks could adopt Puppeteer as their foundational layer.
• Grow the adoption of headless/automated browser testing.
• Help dogfood new DevTools Protocol features…and catch bugs!
• Learn more about the pain points of automated browser testing and help fill those gaps.