Section 5: Debugging Node.js (Notes Apps)

Part 26. Debugging Node.js

• Most basic debugging tool: Useconsole.log() to print the values in variables
• Node debugger
  • Use debugger in your JavaScript file where you want the program to pause
  • Run Node with the inspect command line option
    • $ node inspect …
    • Use the restart command at the debug> prompt to restart the program.
    • Use ctrl+c twice to terminate the debugger
  • When debugging, open Chrome and navigate to chrome://inspect
    • Add your application folder to the inspection file system (+)
    • Resume script execution
    • View the variables that are in scope in the right hand side pane
    • Use the console to print the value of the variables in scope

Part 27. Error Messages

Use the stack trace to find the location of the error.

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