javascript-debugger

问题 While developing with create-react-app, my browser enters debugger mode on warnings: It breaks on the source code of react-dev-tools: // --- Welcome to debugging with React DevTools --- // This debugger statement means that you've enabled the "break on warnings" feature. // Use the browser's Call Stack panel to step out of this override function- // to where the original warning or error was logged. How can I deactivate this behavior? 回答1: Go to Chrome Devtools → in the Chrome console, go to

问题 I've been building a Chrome extension using in part the Chrome debugger protocol. Certain events in the Network domain like requestWillBeSent include a "timestamp" as well as a "wallTime." The walltime is a regular seconds since 1970 format, but the timestamp is in seconds but its not clear where its 0 is, and many events have no wallTime so I'm really trying to figure out how to derive wallTime from timeStamp. Based on this I believed to be based on the navigationStart value but that did not

问题 I'm debugging Samsung TV Tizen Web Application with Tizen Studio 3.6 and Google Chrome Version 80.0.3987.100 (Official Build) (64-bit) . But Chrome Inspector showing black screen. Chrome path config : Chrome blank screen : Please help me out from this issue. 回答1: I got the solution actually it is because Chrome has launched its new version 80.0.3987.100 on the 11th of Feb and because of this version is not compatible with Samsung Tizen IDE so to resolve this you have to download the old

问题 I was trying to debug Cucumber scenarios in Visual Studio code and made below changes in the launch.json . { "name": "e2e", "type": "node", "request": "launch", "program": "${workspaceRoot}\\node_modules\\.bin\\cucumber-js", "stopOnEntry": false, "args": ["--no-timeouts", "--colors"], "cwd": "${workspaceRoot}", "runtimeExecutable": null, "outFiles": [ "${workspaceRoot}\\features\\step_definitions\\*.js" ] }, However, I am not able run a debug session using the above configuration. The step

问题 I'm wondering how the sequence shown below could possibly occur. Here is the function in question: WebSocketConnector.prototype.sendMessage = function(message) { if (socket !== null) { socket.send(message); console.log('Sent: ' + message); } else { alert('Failed to send message. WebSocket connection not established.'); } }; And here is what happens when I debug a call to this function: 1. Start at line 32. 2. Step In, advances to line 33. 3. Step In again, advances to line 34. 4. Step in one

问题 Is it possible to run JSLint on one or more .js files by having JSLint loaded afterwards in the header from debugging/developer console in chrome or firefox? The reason that I want to do that is that I want to print in console.log() the parsing of JSLint in JSON ,it says in documentation: // You can obtain the parse tree that JSLint constructed while parsing. The // latest tree is kept in JSLINT.tree. A nice stringication can be produced // with // JSON.stringify(JSLINT.tree, [ // 'string',

问题 I have this bouncing/colliding balls animation and currently I'm debugging collision detection. To be more precise, I'm trying to prevent balls from intersecting during the collision. I wanted to stop the animation the moment balls collide and I can do that, but if I also want to draw the collision of the balls before stopping the execution, I need to draw them first. firstBall.move(); secondBall.move(); Ball.detectCollisions(balls); // execution stops here before the balls are drawn

问题 I have this bouncing/colliding balls animation and currently I'm debugging collision detection. To be more precise, I'm trying to prevent balls from intersecting during the collision. I wanted to stop the animation the moment balls collide and I can do that, but if I also want to draw the collision of the balls before stopping the execution, I need to draw them first. firstBall.move(); secondBall.move(); Ball.detectCollisions(balls); // execution stops here before the balls are drawn

问题 I got a tricky question. In our work we use a lot the Js debuggers, I mean: <script> debugger; </script> The problem is that we are not supposed to check-in it to the TFS, so I'm wondering if there is someway to check my .js files to see if there are "debuggers" and if so stop the check-in . Do you have any magical idea? Thank you all! 回答1: There are several extensions that give you JSLint functionality that scans your javascript files for errors. Two that I have used are JSLint and JSHint.

问题 Folks, I have a simple test application in which I return a string from a web service without arguments. This works fine under my development environment (VS 2010 SP1Rel on Windows 7 64 bit). When I deploy to the local IIS7 the proxy code for the web service does not load (in IIS logs it is a 500 error). When I request the offending url (http://localhost/Tests/WebServiceTests/TestWebServiceProxy/wsTestService.asmx/jsdebug), I get System.InvalidOperationException: jsdebug Web Service method