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Character Sheet Development/Debugging

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Main Page: Character Sheet Development

Code Validation

Main Page: Sheet Author Tips

It's a good idea to use a validator to check your code for mistakes in your code. Many IDE & text editors can install such extensions automatically, but given that Roll20 does a few things their own way, by default a HTML validator would complain about lot of things that aren't wrong, but just isn't accepted as standard HTML, such as <button type="roll"></button>.

Browser Dev Tool

Using the Firefox dev tools to inspect live sheet code

Using the built in Web Dev tools in your browser helps a lot with figuring things out. Both Firefox & Chrome (others) have their own versions.

Open it: pressing F12 or Right Click anywhere & select "Inspect".

Sheet Dev Uses

  • make live edits on you sheet and see how things change(like adjusting the width of a number input to look good)
  • inspecting other's sheets to se how they achieved some specific effect.
  • HTML/CSS debugging: figure out why something works or doesn't work in your code, to narrow down the problem, like why a css class is not working.
  • sheetworkers/javascript debugging: reading the web console to figure out what's going on with your sheetworkers. Open the console and keep an eye on it when you use the sheet like normally & see what it reports.
    • Example: If you add something like console.log("ifWounded is trigger") or console.log("Set strength mod to" + strmod)() in your sheetworkers, you can see what steps that take place, what is left out, and know what values your variables have at different stages.)
    • JS Debugging in Chrome, and in Firefox

See Also