BankLang playground
Edit BankTS, a small banking language with TypeScript's type syntax, and inspect the COBOL, copybooks, diagnostics, source map, and analysis it produces. The compiler runs in your browser. There is no compile server, and editor content stays in the browser. Use Run to exercise supported examples against the repository's reference runtime.
Source
Edit this. It recompiles as you type. Click any line to trace it into the COBOL beside it, or open Run to execute the COBOL and see what it posts. Language reference →
What this program contains
Generated artifacts
Click a line in either pane to trace it through the source map.