....are not implemented. Deliberately. I did implement GOSUB GOTO and RETURN but under protest :) and it's bad, the RENUM command ignores them so if you renumber a program with GOTO and GOSUB in it won't work. There is actually an ON token but it doesn't do anything other than generate a syntax error.
But still one needs data. So I borrowed a concept from AppGameKit BASIC, which has substring functions, so that you can pass in CSV data (or seperated with any single character) e.g.
12/23/42/61
and there are two functions to split it up. One returns the number of substrings, sub.count(a$,"/") (obviously 4) and one extracts a substring sub.get$(a$,"/",2) so you can store your data in strings (or just in the program code) and access it this way.
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Breaking change
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