npm run watch
This checks for any coding changes and when saved, compiles and updates the hosted page.
Red text are problems that you need to debug what it says in the message above.
It should reload every few seconds, but sometimes you do need to refresh the web page yourself.
In the file corresponding to the one you are trying to solve (e.g. nov15TranslationA.js) update the translation when you want to try a letter.
e.g. if you think ciphered letter K corresponds to an a then change the _ in the translation to be a:
translation.K = "_";should become
translation.K = "a";Save the file and it will show you all those letters in the column on the right.