![]() ![]() However, you may only be able to set and hit breakpoints in the minified or transpiled file, not in the source file. You can even attach the debugger to a running client-side script without the source maps. If your source is minified or created by a transpiler like a TypeScript or Babel, use source maps for the best debugging experience. ![]() JavaScript code must be in separate files to enable debugging. For debugging TypeScript in ASP.NET Core, see Create an ASP.NET Core app with TypeScript.įor Node.js applications and other JavaScript projects, follow the steps described here.įor ASP.NET and ASP.NET Core, debugging embedded scripts in. In some scenarios, the debugger automatically hits breakpoints in JavaScript and TypeScript codes and embedded scripts on HTML files.įor debugging client-side script in ASP.NET apps, choose Tools > Options > Debugging, and then select Enable JavaScript Debugging for ASP.NET (Chrome, Edge, and IE).įor more detailed information, see the blog post Debug JavaScript in Microsoft Edge and this post for Google Chrome. Visual Studio provides client-side debugging support only for Chrome and Microsoft Edge (Chromium). Using these tools, you can examine the DOM or interact with the app using the JavaScript Console. If you want to use the Chrome Developer Tools, press F12 in the Chrome browser. ![]() Now, you can inspect your app state by hovering over variables currently in scope, using debugger windows like the Locals and Watch windows. The debugger pauses at the breakpoint you set (IDE highlights the statement in the yellow background). To run your app, press F5 ( Debug > Start Debugging). A breakpoint indicates where Visual Studio should suspend your running code, so you can look at the values of variables or the behavior of memory, or whether or not a branch of code is getting run. With your project open in Visual Studio, open a server-side JavaScript file (such as server.js), click in the gutter to set a breakpoint:īreakpoints are the most basic and essential feature of reliable debugging. If you are developing Node.js applications, you need to install the Node.js development workload with Visual Studio. But what if my hand baked function is doing something unexpected somewhere up the line, how do I find the problem as the browser parses the javascript.If you haven't already installed Visual Studio, go to the Visual Studio downloads page to install it for free. I understand I can insert console.log() and it will spit out information in the console for firebug or element inspector. It seems that the tutorials and such I am finding are either way to advanced or just skim the surface and don't show you how to use them. ![]() In reading up on the subject there is mention of console.log(), () and the such but I can not find any resource that explains how to use these in real world scenarios for debugging.ĭo any of you know of a good resource or tutorial (not afraid to read a book) that can explain how to use these functions for the layman. But then something doesn't go as expected, before I post questions to stackoverflow and get answers that make me slap myself in the forehead I would like to debug it myself and am sick of inserting alert() into my code. I know enough jQuery to get myself into trouble, meaning I can grab elements and do stuff with it, write my own little functions for interactivity and such. Ok so I hope this is a question that isn't to basic for you guys. ![]()
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