Similar to the previous “Step” command, but behaves differently if the next statement is a function call (not a built-in, like alert, but a function of our own). – “Step over”: run the next command, but don’t go into a function, hotkey F10. If we click it now, alert will be shown.Ĭlicking this again and again will step through all script statements one by one. – “Step”: run the next command, hotkey F9. Take a look at the “Call Stack” at the right. The execution has resumed, reached another breakpoint inside say() and paused there. Here’s what we can see after a click on it: If there are no additional breakpoints, then the execution just continues and the debugger loses control. – “Resume”: continue the execution, hotkey F8. There are buttons for it at the top of the right panel. There’s also this keyword there that we didn’t study yet, but we’ll do that soon. Global has global variables (out of any functions). You can also see their values highlighted right over the source. “anonymous”), the debugger jumps to the corresponding code, and all its variables can be examined as well. The debugger will show its value, automatically recalculating it in the process of execution.Ĭall Stack – shows the nested calls chain.Īt the current moment the debugger is inside hello() call, called by a script in index.html (no function there, so it’s called “anonymous”).
#Script debugger error getting property plus#
You can click the plus + and input an expression. Watch – shows current values for any expressions.
#Script debugger error getting property code#
They allow you to examine the current code state: It will match any number ofĪrbitrary characters except /.Please open the informational dropdowns to the right (labeled with arrows). You can also use * as a wildcard in the url of a pathMapping. For these URLs the debugger will show the contentįetched from the server instead of the local file content. Server is different from the local file content.
That dynamically generate their content on the server (e.g. Your workspace (because they are dynamically generated by webpack). URLs starting with webpack:///webpack or webpack:///(webpack) do not correspond to files in In the webpack mappings shown above this is used to specify that When the path argument of a mapping is set to null, the corresponding URLs are prevented fromīeing mapped to local files. For example, theĪbove configuration would be equivalent to You may omit the webRoot property if you specify the pathMappings manually. The url property may point to a file or a directory, if it points to a directory it must end withĪ trailing / (e.g. Launch configuration with a url and a webRoot property. In this case replace the file property in your With server-side components like Webservices). You may want (or need) to debug your application running on a Webserver (especially if it interacts Here's an example configuration for launching Firefox navigated to the local file index.html vscode/launch.json already exists in your project, you can open it and add aĬonfiguration snippet to it using the "Add Configuration" button in the lower right corner of the The gear icon at the top of the Debug pane.įinally, if. You can do so manually or let VS Code create an example configuration for you by clicking vscode/launch.json in the root directory of your To configure these modes you must create a file. In attach mode the extension connects to a running instance of Firefox (which must be manuallyĬonfigured to allow remote debugging - see below). reAttach also works for WebExtension debugging: in this case, the WebExtension is (re-)installed as a temporary add-on.
You start the next debugging session - this is a lot faster than restarting Firefox every time. You can also set the reAttach option in your launch configuration to true, in this case Firefox won't be terminated at the end of your debugging session and the debugger will re-attach to it when In launch mode it will start an instance of Firefox navigated to the start page of your applicationĪnd terminate it when you stop debugging. You can use this extension in launch or attach mode. Watch pane for evaluating and watching expressions.Variables pane for inspecting and setting values.Debugging eval scripts, script tags, and scripts that are added dynamically and/or source mapped.
Inject logging during debugging using logpoints.Pause on object property changes with Data breakpoints.Pause breakpoints, including advanced conditional and inline modes.Debug your JavaScript code running in Firefox from VS Code.Ī VS Code extension to debug web applications and extensions running in the Mozilla Firefox browser.
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