Function createNewPromise

packages/react-dom/src/__tests__/ReactDOM-test.js:813–818

()

    let resolveCurrentPromise;
    let currentPromise;
    function createNewPromise() {
      currentPromise = new Promise(r => {
        resolveCurrentPromise = r;
      });
      return currentPromise;
    }
    createNewPromise();
    function Comp() {
      const [promise, setPromise] = React.useState(currentPromise);