interactive · effect v4
Effect playground
Edit, then Run — your TypeScript is transpiled and executed in a Web Worker. Default-export an Effect and the runner runs it and prints its value.
An Effect is a description of work — not a running Promise. Nothing happens until it's run. The playground runs whatever you export-default and prints its value. Change the return value, then Run.
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Run the code to see console output and the result of the default-exported Effect.