Chrome’s new Developer Tools has a way to capture high quality full size screenshot of the page so you don’t have to have an extension for it anymore! Update for latest Chrome versions: Chrome DevTools was slightly changed so here are the new steps (tested in Version 71.0.3578.98 (Official Build) (64-bit) on macOS). Code for this project can be downloaded from here: fp-chrome-screenshot.git. The working principle can be broadly divided into 3 parts which allows to take full page screenshots in Selenium. Driver Setup: In order to access DevTools API from selenium test, we need to first know the ChromeDriver server’s URL. Screenshot by Ed Rhee Step 3: After installation, click on the Screen Capture button on the Chrome toolbar and select Capture Whole Page or use the keyboard shortcut, Ctrl+Alt+H.
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This page explains how the Chrome DevTools Console makes it easier to develop web pages.The Console has 2 main uses: viewing logged messages and running JavaScript.
Viewing logged messages
Web developers often log messages to the Console to make sure that their JavaScript is working as expected.To log a message, you insert an expression like
console.log('Hello, Console!')
into your JavaScript.When the browser executes your JavaScript and sees an expression like that, it knows that it's supposed tolog the message to the Console. For example, suppose that you're in the process of writing the HTML andJavaScript for a page:Figure 1 shows what the Console looks like after loading the page and waiting 3 seconds. Lightworks download. Try to figure out whichlines of code caused the browser to log the messages.
Web developers log messages for 2 general reasons:
- Making sure that code is executing in the right order.
- Inspecting the values of variables at a certain moment in time.
See Get Started With Logging Messages to get hands-on experiencewith logging. See the Console API Reference to browse the full listof
console
methods. The main difference between the methods is how they display the datathat you're logging.Running JavaScript
The Console is also a REPL.You can run JavaScript in the Console to interact with the page that you're inspecting. For example, Figure 2shows the Console next to the DevTools homepage, and Figure 3 shows that same page after using the Consoleto change the page's title.
Modifying the page from the Console is possible because the Console has full access to the page's
window
. DevTools has a few convenience functions that make it easier toinspect a page. For example, suppose that your JavaScript contains a function called hideModal
. Runningdebug(hideModal)
pauses your code on the first line of hideModal
the next time that it's called. SeeConsole Utilities API Reference to see the full list of utility functions.Full Page Screenshot Chrome Extension
When you run JavaScript you don't have to interact with the page. You can use the Console to try out new code that's not related to the page. For example, suppose you just learnedabout the built-in JavaScript Array method
map()
, and you want to experiment with it.The Console is a good place to try out the function.See Get Started With Running JavaScript to get hands-onexperience with running JavaScript in the Console.
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How To Screenshot Chrome Page
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