Debugging JScript for .Net Framework

Question

jsc, the JScript compiler for .Net Framework, has a /debug option.

The suggested debugger, dbgclr.exe, is not available anymore. Do you know of any currently available debugger to step through JScript code?

Just to avoid misunderstanding, I am speaking of the Microsoft JScript, which is able to access Windows API, its file system, Office etc; not the JavaScript that comes with the browser.

Pavel Sem · Accepted Answer · 2020-06-01 05:55:28Z

3

Compile your code with debugger symbol on. For example [jsc /debug+ test.js]
Insert [System.Diagnostics.Debugger.Launch();] into your code where you want to break(debugger).
Make sure you install C# development tool on your Visual Studio 2019/2017.
Go to your Visual Studio 2019/2017's menu Tools>Options>Debugging>Just-in-time, check Managed.
Run the .exe file. In this example, it will be test.exe.
You should see a JIT debugger popup.

edited Jun 1, 2020 at 5:55

Pavel Sem

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answered May 31, 2020 at 18:05

Roland Wu

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1 Comment

Roland Wu Over a year ago

Don't forget to [import System;].

o.carltonne · Accepted Answer · 2015-01-15 23:40:56Z

-1

When you execute your JScript using the command line, you can do it with cscript and the debug option. You will be asked which debugger you want to use, and you can attach visual studio to it. Example (in the command line, after launching cmd.exe):

cscript.exe "path to your JScript.js" //X  <==(the //X turns on the debugger)

After running this, there will be a popup that asks which debugger you want to use. You can either open a new instance of Visual Studio, or if you're working with the JScript in Visual Studio already, you can use an existing instance.

This works for Visual Studio Express as well.

answered Jan 15, 2015 at 23:40

o.carltonne

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1 Comment

Oleg V. Volkov Over a year ago

This is a question about .net, not JScript you run through WSH.

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