google-chrome-devtools

Can I inject a CSS file programmatically using a content script js file? It is possible for me to inject the css when the js file is linked to my popup.html. The problem is I have to click on the button to open the popup to inject the css. I want it to happen automatically and in the background. What happens in my code... Get a variable from a MySQL database through a XMLHttpRequest Call the function, "processdata()" "processdata" Will process the data from the XMLHttpRequest. More specifically, split the variable, put it into 2 different variables and make them global I call the function,

I am currently analysing my page connections and I want to block some tracking scripts and other external URL calls in my network monitor inside Chrome's developer tools. I quickly want to check how the page behaves without some libraries. Chrome itself does not provide any functions like this and the famous blocking extensions only block URLs which the user enters manually into the navigation bar. As pointed out by @calavera.info , @iman.Bahrampour , and @Asim K T this feature is now available in Chrome 59. You can select a URL or domain to block in the Network panel. See this release note

I am learning JavaScript and have been doing a lot of testing in the Chrome console. Even if I clear the console, or use any of the commands I've seen in other threads ( localStorage.clear() ) any variables I've assigned still show up. For example, if I do something like var name = "Bob"; I clear and close the console, reopen it, and look for the value of name , it's still Bob . What's the best way to clear these out? What you are affecting when declaring any variables or functions within the developer console is the global execution context , which for web browsers is window . When you clear(

I have a json file in a Content folder within my asp.net project: <projectName> \Content NBCCJr.json ...and the code to access it: $.getJSON('~/Content/NBCCJr.json', function (data) { $.each(data, function(i, dataPoint) { // Bla }); }); ) ...but nothing happens when the code is called; the browser console says, "Failed to load resource: the server responded with a status of 404 (Not Found)" Why is it not found? Isn't "tilde whack filename" the correct route to the file? UPDATE I also tried it with the "whacks" backwards: $.getJSON('~\Content\NBCCJr.json', function (data) { ...and got the same

In Google Chrome version 38+, there's a new black ruler with Device emulation options. Does anyone know how to disable this? Gohn67 You can hide it by toggling the "Device Mode" button. I'm on Chrome 38 on OSX if that matters. Note that the rulers will still show up if you need to do Device emulation. This is from the Chrome Developer docs: https://developer.chrome.com/devtools/docs/device-mode Windows: Ctrl + Shift + M Mac: Cmd + Shift + M In version 44+: In the main Dev tool window, click on the kebob menu and then Toggle device Toolbar. 来源： https://stackoverflow.com/questions/26308572

What is “(program)” in the function column of the Chrome debugger? Nick Craver (program) is Chrome itself, the root of the tree calling all other code...it's there because the jump from native code to JavaScript, resource loading, etc. has to start somewhere :) You can see examples of the treeview in the Chrome developer tool docs . I believe (program) is native code, not the root of the tree. See this thread: https://bugs.webkit.org/show_bug.cgi?id=88446 So, more like system calls than like main(). Apparently it includes idle time. Also, some profiling of (program) is available from chrome:/