RubyMine 2019.2 Help

Using interactive Debugger Console

When you are debugging a Node.js application, RubyMine shows two console tabs in the Debug tool window - Console and Debugger Console.

  • The Console tab shows the output of the node process itself, that is, everything that is written to process.stdout and process.stderr directly or is logged using console.*.

    Node.js debugging: Console tab
  • In the Debugger Console, you can run JavaScript code snippets and view the console.* messages.

Run JavaScript in the Debugger Console

  1. Start typing a statement at > in the input field. As you type, RubyMine suggests variants for completion.

  2. Select the relevant statement and press Enter. RubyMine shows its value in the console.

Navigate to source code

  • At each line with output of console.*, RubyMine shows the name of the file and the line where it was called. Click this link to jump to the call in the source code.

  • The Debugger Console also shows stack traces. Click the link next to a reported problem to jump to the line of code where this problem occurred.

Filter out messages

The console shows objects in a tree view, with stack traces collapsed by default. Warnings console.warn(), errors console.error(), and info console.info() messages have different icons and background colors to make them easier to notice.

To hide log messages of specific types, click the Filter button and select the severities to filter out.

Node.js interactive debugger console: filtering out messages by type

Group messages

The log messages grouped using console.group() and console.groupEnd() are displayed as a tree. To show the output collapsed by default, use console.groupCollapsed().

Node.js interactive debugger console: log messages grouped

Apply CSS styles

Use CSS and the %c marker to apply styles to log messages.

Node.js interactive debugger console: applying CSS style to log messages

Last modified: 5 September 2019