TouchDevelop

Aliases: TD

Provenance: commit 7d478dcba7 · authored 2026-03-12T23:29:07+01:00 · agent claude-code · model claude-sonnet-4-6

2 sources · pl_id: pl/touchdevelop

Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

// Fibonacci sequence calculator in TouchDevelop
action fibonacci(n : Number) returns Number
  if n <= 1 then
    return n
  end
  var a := 0
  var b := 1
  var i := 2
  while i <= n do
    var tmp := a + b
    a := b
    b := tmp
    i := i + 1
  end
  return b
end

action main()
  var i := 0
  while i <= 15 do
    wall→add text("fib(" + i→to string + ") = " + fibonacci(i)→to string)
    i := i + 1
  end
end