Click run to generate an image, right here in your browser, in grol code

Edit the sample/Enter your GROL code here: println("Outputting a smiley: 😀") func fact(n) { // function example, name is optional log("called fact ", n) // log output // parenthesis are optional: if (n<=1) { return 1 } n*fact(n-1) // recursion } a=[fact(5), "abc", sqrt(2)] // heterogeneous array, math functions /* maps also can have any key,value types: */ m={"str key": a, PI: "pi", 42: "str val", 1e3: "a lot"}

Hit ctrl-enter or click (will also format the code, also try compact)

Result:

Errors:

GROL

Try the interactive REPL xterm.js mode | ghostty-web mode

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