message: print examples and then throw error if they didn't pass
diff: @@ -90,7 +90,7 @@ async function main() {
  throw e;
  }
  });
  - console.log(`valid examples ${passed}/${examples.length}`);
  + console.log(`\nvalid examples ${passed}/${examples.length}`);
  if (passed !== examples.length) {
  throw new Error("didn't pass all tests");
  }
  