@babel/plugin-proposal-function-sent

  const _functionSent = yield;
  console.log("Sent", _functionSent);
  console.log("Yield", yield);
});
const iterator = generator();
iterator.next(1); // Logs "Sent 1"

{
}

require("@babel/core").transformSync("code", {
  plugins: ["@babel/plugin-proposal-function-sent"],
});

• Proposal