Playground

Try AbySS without installing anything. The interpreter compiles to WebAssembly (the same abyss-core and abyss-interpreter crates the CLI uses), so what you see here matches what abyss invoke would print on your machine.

unveil writes appear under Output. Parser and runtime diagnostics appear under Diagnostic with the same labels the CLI shows; an inline Error summary is displayed when execution could not complete. summon (interactive input) is intentionally not wired up in the browser — calling it raises a clear runtime error rather than blocking forever.

Samplehello: unveil "Hello, AbySS!"patterns: ward + scroll destructuringempty: start from scratchRun

Pick a sample from the dropdown to seed the editor, or start from scratch and write your own. Hit Run to evaluate.