The commands API allows you to define specific commands, and bind them to a default key combination.

Each command your extension accepts must be listed in the manifest as an attribute of the 'commands' manifest key. An extension can have many commands but only 4 suggested keys can be specified. Shift can be used in addition to Alt or Ctrl, but is not required. Modifiers such as Ctrl can not be used in combination with the Media Keys. Tab key was removed from list of supported keys in Chrome version 33 and above for accessibility reasons.

If you want 'Ctrl' instead, please specify 'MacCtrl' under "mac". Specifying 'MacCtrl' under "default" will cause the extension to be uninstallable. Certain Chrome shortcuts e.

chrome console commands list

For example:. They won't normally generate events that you can handle. If you need to take action based on your popup opening, consider listening for an 'onDomReady' event inside your popup's code. By default, Commands are scoped to the Chrome browser, which means that while the browser does not have focus, the shortcut will be inactive.

Returns all the registered extension commands for this extension and their shortcut if active. If you specify the callback parameter, it should be a function that looks like this:. The callback parameter should be a function that looks like this:. Skip to main content chrome. Availability: Since Chrome Usage The commands API allows you to define specific commands, and bind them to a default key combination. For example: chrome.

Scope By default, Commands are scoped to the Chrome browser, which means that while the browser does not have focus, the shortcut will be inactive. Parameters function optional callback Called to return the registered commands. Use the commands API to add keyboard shortcuts that trigger actions in your extension, for example, an action to open the browser action or send a command to the extension. The name of the Extension Command.

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The Extension Command description. The shortcut active for this command, or blank if not active. Called to return the registered commands.Google Chrome is a wonderful browser offering many hidden features like omnibox searchauto translate barvideo play controls and much more. Normally, you can access the settings page through the menu icon.

Basically you can check out the latest version of your Chrome and update it if it is not up to date. Access browsing history with this URL command instead of going through the menu. This is URL command to see all experimental features offered by Chrome. As mentioned in the page use any of these features at your own risk. Quickly open Chrome Bookmarks Manager and view the list of your bookmarked pages. Google Chrome has a powerful caching mechanism to load pages faster on subsequent viewing of pages from the same website.

Though this feature is useful for general users, it may be annoying for web developers as the changes will not be reflected immediately.

Using this command URL, you can view the files cached on the browser. Also you can click on the file link to see the HTTP header status like how long the cache is valid.

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When you open Chrome, the home page contains the thumbnails of the latest visited websites. Using this URL command you can view the list of top sites having thumbnail shortcut in your browser. Also you can right click on the image and download to your computer.

So this is one of the easy ways to generate thumbnails for the websites. Well, this is the one URL command you should probably remember. Editorial Staff at WebNots are team members who love to build websites and share the learning with webmasters community. What is MAC address? Chrome But why? You can disable JavaScript which may affect other functionality of the site or use ad blocking plugins for Chrome to disable ads on the sites.

Chrome Version and Update Check Command. Chrome History Command.In the Elements panel you can drag and drop any HTML element and change its position across the page. The first lets you add a new CSS property, with any selector you want but pre-filling the currently selected element:. Click the name of the CSS file that you edited. The inspector opens it into the Sources pane and from there you can save it with the live edits you applied.

Select an element and press cmd-shift-p or ctrl-shift-p in Windows to open the Command Menu, and select Capture node screenshot. Pressing cmd-f ctrl-f in Windows opens the search box in the Elements panel. You can type any string in there to match the source code, or you can also use CSS selectors to have Chrome generate an image for you:. You can clear the console using the Clear button on the top-left of the console, or by pressing ctrl-l or cmd-k. Instead of writing again and again a variable name or an expression you are going to check a lot during a debug session, add it to the Watch Expression list.

Download my free booksand check out my premium courses.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. 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. When the browser executes your JavaScript and sees an expression like that, it knows that it's supposed to log the message to the Console.

Figure 1 shows what the Console looks like after loading the page and waiting 3 seconds. Try to figure out which lines of code caused the browser to log the messages. The main difference between the methods is how they display the data that you're logging.

You can run JavaScript in the Console to interact with the page that you're inspecting. For example, Figure 2 shows the Console next to the DevTools homepage, and Figure 3 shows that same page after using the Console to 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 to inspect a page. For example, suppose that your JavaScript contains a function called hideModal.

Discover Chrome Command Line: Skilfully Use Chrome Console Commands

Running debug hideModal pauses your code on the first line of hideModal the next time that it's called. 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 learned about the built-in JavaScript Array method mapand you want to experiment with it.

The Console is a good place to try out the function. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4. For details, see the Google Developers Site Policies. Fundamentals Tools Updates Case Studies. Tools for Web Developers. Mobile Simulation.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

In Firebug, the DOM tab shows a list of all your public variables and objects. In Chrome's console you have to type the name of the public variable or object you want to explore. Is there a way - or at least a command - for Chrome's console to display a list all the public variables and objects?

Debugging JavaScript - Chrome DevTools 101

It will save a lot of typing. This will list everything available on the window object all the functions and variables, e. Though, this is quite a list; not sure how helpful it is When script execution is halted e. If you want to exclude all the standard properties of the window object and view application-specific globals, this will print them to the Chrome console:.

The script works well as a bookmarklet. To use the script as a bookmarklet, create a new bookmark and replace the URL with the following:. David Walsh has a nice solution for this.

chrome console commands list

Here is my take on this, combining his solution with what has been discovered on this thread as well. To be fair, you'll get everything in the window scope, including browser built-ins, so it might be sort of a needle-in-a-haystack experience. You may want to try this Firebug lite extension for Chrome.

To view any variable in chrome, go to "Sources", and then "Watch" and add it.

chrome console commands list

If you add the "window" variable here then you can expand it and explore. Updated method from same article Avindra mentioned — injects iframe and compare its contentWindow properties to global window properties. If you have multiple frames, you will have to select the correct window object like in Firebug anyway. Learn more. Asked 9 years, 10 months ago. Active 3 months ago. Viewed k times. Charles GRboss GRboss 4, 5 5 gold badges 17 17 silver badges 20 20 bronze badges.

Active Oldest Votes. Is this the kind of output you're looking for? Fuhrmanator 6, 4 4 gold badges 45 45 silver badges 78 78 bronze badges. CMS - Yes that's true Marcel Korpel Marcel Korpel MildFuzz Then use Nick Craver's solution the accepted one. Open the console and then enter: keys window to see variables dir window to see objects.

Daniel Sokolowski 9, 2 2 gold badges 53 53 silver badges 46 46 bronze badges. By far the easiest way since you can recursively expand variables.The Chromium Team has made a page on which they briefly explain how to use these switches.

These are rather technical. While most are pretty self-explanatory, keep in mind that any condition means that a switch isn't always available. Note: must always be in [1, 8]; otherwise it is ignored by the Windows prefetcher. Prefetch arguments are used by the Windows prefetcher to disambiguate different execution modes i. Legal values are integers in the range [1, 8].

TODO rockot : Make it possible for embedders to override this argument on a per-service basis. Flag indicating that a resource provider must be set up to provide cast receiver with resources. Apps cannot start until provided resources. Command line flag for enabling account consistency. Default mode is disabled. Mirror is a legacy mode in which Google accounts are always addded to Chrome, and Chrome then adds them to the Google authentication cookies.

chrome console commands list

Dice is a new experiment in which Chrome is aware of the accounts in the Google authentication cookies. Add additional capabilities to the AppContainer sandbox used for XR compositing. The valid range is Values outside that range will be clamped to the lowest or highest valid value inside WebRTC.

TODO tommi : Remove this switch when crbug. Allow access to external pages during web tests. If this flag is passed, failed policy fetches will not cause profile initialization to fail. This is useful for tests because it means that tests don't have to mock out the policy infrastructure.

Console Overview

This is an override for developers who need the old behavior for testing. Allows the browser to load extensions that lack a modern manifest when that would otherwise be forbidden. Allows loopback interface to be added in network list for peer connection. Specifies comma-separated list of extension ids or hosts to grant access to file handle APIs.

Enables the sandboxed processes to run without a job object assigned to them. This flag is required to allow Chrome to run in RemoteApps or Citrix. This flag can reduce the security of the sandboxed processes and allow them to do certain API calls like shut down Windows or access the clipboard. Also we lose the chance to kill some processes until the outer job that owns them finishes. Don't block outdated plugins.

Allow a page to show popups during its unloading. Allows remote attestation RA in dev mode for testing purpose. Usually RA is disabled in dev mode because it will always fail. However, there are cases in testing where we do want to go through the permission flow even in dev mode.

This can be enabled by this flag.The Console panel of Chrome Developer Tools offers a variety of functions that developers or curious Internet visitors can exploit to improve websites.

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Some of the Chrome Console commands that we review in this tutorial are closely-related to the ones we discussed in the Console API tutorial. Selectors also play a huge role. Because of them, you can quickly find the needed objects or elements. For instance, you can quickly find the last evaluated expression. However, the functionality does not end here.

Thanks to convenient Chrome commands in this API, you can also keep track of DOM events, clear the history of the console and move object string representations to clipboard. Furthermore, you can use functions that could be labeled as Source Console commands because they break functions on the Source panel and make debugging possible.

Chrome keyboard shortcuts

Specific functions or objects will be opened in their corresponding tabs. For instance, DOM elements are displayed in the Elements panel. If all of this seems complicated, no need to worry: this tutorial explains all of the functions in great detail! It may contain anything from simple values to objects with their own properties. These functions refer to the history of what you have selected in the DOM interface of Elements panel. Learn how to work around this here.

Based on the XPath expression you provide, this will return an array of elements. Now that we have the selectors explained, we can get to the functions. Many of them are similar to the ones that the Console API provides. It allows you to copy a string representation of the object you selected into the clipboard.

Once the function you specify in the brackets is called, the debugger is initiated and breaks the function inside the Sources panel. This is one of the Source Console commands that we mentioned before.

After it is implemented, you can analyze the code and debug it. Stop the debugging of the function if debug has been calledso the debugger does not get invoked once the function starts executing. It shows an XML representation of the selected object, as depicted in the Elements panel. If a function is specified, the file containing the function will be opened in the Sources panel. If multiple listeners are registered for one object, you will receive an array, containing a member of every listener.

Objects can be expanded to view their details. This object displays properties of the specified object. This object shows the property values of the specified object. After you run this function, the console is set to log whenever the specified function is called. This log also specifies the parameters the function was called with.


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