google-chrome-devtools

Simple example with window.requestFileSystem() function

由 谁说胖子不能爱 提交于 2019-12-01 04:41:52
问题 I have next problem: I try to use window.requestFileSystem() function in Chrome, but it failed. Look for my steps: 1)I added 'allow file access from file' flag to Chrome(see img bellow): 2)I restarted the system. 3)Then I ran the Chrome with 'allow file access file' flag. 4) After all I try to launch this sample code: function onInitFs(fs) { console.log('Opened file system: ' + fs.name); } function errorHandler(e) { console.log("Error"); } window.requestFileSystem(window.TEMPORARY, 5*1024

What are this gap mean in Chrome devtools profile flame chart

由 China☆狼群 提交于 2019-12-01 04:18:02
问题 Here is my javascript code, it is pretty simple: console.profile(); var count = 1000; var fn1 = function () { for (var i = 0; i < count; i++) { console.log("THIS IS FN1"); } } var fn2 = function () { for (var i = 0; i < count; i++) { console.log("THIS IS FN2"); } fn1(); } fn2(); console.profileEnd(); and this is my profile screenshot: Why there are some gap in the image, just like my black rectangle marked? What does this gap mean? 回答1: You see this non-uniform sequence of gaps between log

Safari/Chrome Developer Tools debug CSS overrides

由 情到浓时终转凉″ 提交于 2019-12-01 04:17:08
Safari/Chrome Developer Tools indicate that a CSS rule is overridden by something else by striking it through, as shown in the image. Sometimes I find myself in a situation where I can not figure out from the CSS files what causes this rule to be ignored. But surely Safari itself must know as it strikes it through. Is there a way to know what overrides such a rule? Look at the one which isn't striked out, higher up on the list. Alternatively, view the computed styles . They will be the definitive applied styles. sheplu When you inspect an element, you can show the 'box'. Just bottom of that,

how to totally ignore 'debugger' statement in chrome?

由 五迷三道 提交于 2019-12-01 04:12:58
'never pause here' can not work after I continue： still paused For totally ignore all breakpoints in the chrome you must do as follows: Open the Chrome browser. Press F12(inspect) or Right-click on the chrome and select inspect In the source menu, press Ctrl+F8 to deactivate all breakpoints(alternative: at the top-right-corner select deactivate breakpoints) All breakpoints and debugger statements will be deactivated. 来源： https://stackoverflow.com/questions/45767855/how-to-totally-ignore-debugger-statement-in-chrome

Strange behaviour of JavaScript in Chrome Developer Tool

由 邮差的信 提交于 2019-12-01 03:49:58
Recently, working with JavaScript in Developer Tool, I found strange feature. Chrome accepts any code between opening bracket with operator (plus, minus sign) and operator with closing brackets and executes it, like this: I didn't find this behaviour in another browsers, just in Chrome. Maybe it's a feature, but why and how it works, can it be problem with JavaScript engine? This is the way chrome evaluates your input: with (typeof __commandLineAPI !== 'undefined' ? __commandLineAPI : { __proto__: null }) { // your code here... } So once your input is }{ it becomes with (typeof _

chrome.devtools.inspectedWindow change event

由 心已入冬 提交于 2019-12-01 03:48:25
问题 The Google Chrome extension API provides info on the currently open window, using chrome.devtools.inspectedWindow, but it doesn't provide events for when it changes. I may refresh or redirect the page and I'd like the DevTools panel I'm adding to be notified. Is there a method for this? Think of the Elements panel, it always stays up to date with the current DOM. This might be hard to implement in order to stay up to date like it does, whenever a DOM mutation happens, but I'd like at least to

Google Chrome Developer Tools has stopped logging output and errors to the console?

由 拥有回忆 提交于 2019-12-01 03:46:34
问题 I'm currently running Google Chrome version 31.0.1622.7 and since about 2 days ago my dev tools stopped logging any of my output (e.g. console.log("Blah.." ), or displaying any errors to the console. If an error occurs I can see the red error icon in the bottom right of the window, but if I click on the icon it doesn't show the error details in the console window or highlight the error in the source. I have tried re-installing Chrome and the problems persists. Is anyone else experiencing this

What is the difference between WebDriver and DevTool protocol

由 泪湿孤枕 提交于 2019-12-01 03:39:22
问题 As we known WebDriver protocol is design for automation test purpose. But the major browsers also provide DevTool protocol. In some cases the DevTool protocol could achieve more powerful interactions and operations compare to WebDriver. My question is why there are two different protocols and what's the main difference between these two protocols? Is there any selection experience available to share for a project development? Thanks in advance! Reference: DevTools https://docs.microsoft.com

Chrome does not show network traffic of Silverlight RIA services messages after update to version 32.0.1700.76 m

由 感情迁移 提交于 2019-12-01 02:59:43
问题 Couple days ago Google Chrome automatically updated from version 31.* to version 32.0.1700.76 m. After that happened it does not show in DevTools network traffic request/responses of "application/msbin1" type anymore. These requests are visible in all other browsers' dev tools (FireFox, IE) and in Fiddler, but not in Chrome. Also Chrome's popup menu in this version is very glitchy. I don't see the way to downgrade Chrome to previous version. Please help I don't want to uninstall Chrome.

Why does Chrome devtools show these folders in orange and in italics?

由 青春壹個敷衍的年華 提交于 2019-12-01 02:23:07
I'm looking at the "Sources" tab in Chrome developer tools. Some of the folders are orange and in italics. How are those different from the "regular" folders (shown in blue)? Folder color Blue - Regular folder, not contains any source maps files Orange - Folder contains files having source maps attached (.less/.css or .ts/.js) Resource color Yellow - JS Violet - CSS & Fonts Green - Images Grey - HTML 来源： https://stackoverflow.com/questions/43599974/why-does-chrome-devtools-show-these-folders-in-orange-and-in-italics
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