Omega Monad from Haskell translated to JavaScript.

omega-monad.js

/**
 * A depth-first traversal of nested thunks.
 *
 * @param thunks  The list of thunks to traverse.
 **/
async function omega(thunks) {
  if (typeof thunks.iterate !== "function") {
    thunks = [thunks];
  }
  for await (let thunk of thunks) {
    let result = thunk();
    if (result) {
      if (typeof result === "function") {
        omega([result]);
      } else if (typeof result.iterate === "function") {
        omega(result);
      }
    }
  }
}