HTML All The Things - Web Development, AI, and Developer Careers

Troubleshooting Your Code

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In this episode we dive into the world of troubleshooting and debugging exploring different methodologies and tools that should help you take out any pesky bugs you might come across.

Segment 1 - Troubleshooting Methodologies

  • Process of Elimination
  • Slowly eliminate parts of your code that might be the culprit
  • Narrow down the culprit then perform the process of elimination on the section that is causing the issue
  • Don't be afraid to Google/research
    • Researching is nothing to be ashamed of, it does not mean you don't know what you're doing
  • As you look things up you'll be enhancing your researching skills, which is helpful when treading into new technologies
  • Learn the Source
    • Don't just bandaid the issue
  • Find out the who, what, where, when, why, and how
  • Apply an actual fix to the issue wherever possible and take measure to prevent it from happening again

    • Segment 2 - Debugging in the Browser

    • UI/UX Debugging
    • Using console window on Google Chrome
  • Inspecting elements to determine proper positioning and check if something is overlapping
  • Primarily use: Elements View, Styles View, and Console
  • Using console.log to check how a program is running
  • Advanced Console Debugging
    • JS Breakpoints to check on parts of programs
    • Better than console logs in some more advanced cases
  • Can check all local variables at a select breakpoint
  • Postman for DB Debugging

    • Segment 3 - Application/Storytime

    • Troubleshooting Cordova Apps on Android
    • Longevity testing
  • Wireless adb debugging
  • Passing console logs through from webview to Android through an interface
  • Crashing issues
  • Media playback issues
  • VPN Gateway Failure (some details changed for security procedure
    • IT support issue
  • Establishing a tunnel worked but routing internally didn't work
  • Ended up being an NDP issue
  • Most advanced troubleshooting Matt has possibly done (most involved - over 2 weeks of work)

    • Web News - Experience Doesn't Trump Research

    • Don't shy away from research 
  • We typically have the documentation of a given framework or library that we are using, pulled up on a tab at all times
  • Impossible to commit everything to memory
  • Getting muscle memory, intuition, and research skills down pat makes you a proper "technician" for software engineering and IT work

    • You can find us on...

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    HTML All The Things - Web Development, AI, and Developer CareersBy Matt Lawrence and Mike Karan
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