{"id":"operator--symbol-8a8de8","name":"?","owner":"yeho","package":"language.operators","kind":"operator","signature":"?","description":"Allow a reference type to also hold null.","context":"A focused reference with a complete example. Numeric widths and experimental types still depend on the selected backend.","parameters":[],"returns":"","members":[],"tags":["cpu","language","operator","type","yeho"],"updated":"2026-09-09","source":{"repository":"demonhunterlabs","path":"app/lib/yeho-language-reference.ts"},"status":"documented","notes":[],"examples":[{"id":"complete","title":"Complete nullable types example","description":"Use only when deliberately running the comparison oracle. In Kyber-ready code, model absence explicitly with a bool, enum, or sentinel thing.","code":"class Pilot { text name = \"Nova\" }\nPilot? selected = null\nif selected == null { Console.Log(\"Choose a pilot\") }\n","tags":["cpu","language"],"run":"cpu-oracle","expected":null,"verifyRun":false,"manifest":"manifestVersion = \"2\"\npackage = \"api.example.language__nullable_values\"\nversion = \"0.1.0\"\nlanguageEdition = \"yeho-core-2026.1\"\n\n[app]\nkind = \"headless\"\n","verification":"type checked","sha256":"fc13c8b2f9baa0de47f4e64371c23b09c1a08f97c72114f70f00a445c3f9a944","checked":"2026-09-09","diagnostic":"","observedOutput":null,"checkedBackend":null}],"searchTerms":[],"url":"https://demonhunterlabs.com/academy/api?item=operator--symbol-8a8de8","json":"https://demonhunterlabs.com/reference/items/operator--symbol-8a8de8.json","markdown":"https://demonhunterlabs.com/reference/text/operator--symbol-8a8de8.md"}