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Debugging Node.js application in VSCode

Node.js applications can be debugged in 3 different approaches in VSCode. JavaScript Debug terminal is one easy approach among them.

Step-by-step guide to start application in debug mode

Go to menu View -> Terminal
This will open a integrated terminal. Select the JavaScript Debug Terminal from the terminal switcher dropdown.
You can debug Node.js applications directly by using the command npm start or node <starting JS file-name>

Step-by-step guide to add breakpoints

Breakpoints

Double clicking in in the gutter beside a line number will include a breakpoint which will pause the execution while hitting the line.
Alternatively , right-click in the gutter beside a line number and select " Breakpoint"

Conditional Breakpoints

Right-click in the gutter beside a line number and select "Conditional Breakpoint"
Create expression for the breakpoints that only pause when the defined expression returns a truthy value.

Logpoints

Right-click in the gutter beside a line number and select "Log Breakpoint"
Create logs that can be be printed while crossing this breakpoint.To print variable, place them inside {variable-name} curly braces.

Debug action

After launching the application in debug mode , a debug action toolbar can be viewed in the top of the editor.
Alternatively using the following shortcuts actions can be performed
- Continue / Pause F5
- Step Over F10
- Step Into F11
- Step Out Shift+F11
- Restart Ctrl+Shift+F5
- Stop Shift+F5