Function isAtLeastReact17

packages/react/src/error.ts:9–12

(reactVersion: string)

 * See if React major version is 17+ by parsing version string.
 */
export function isAtLeastReact17(reactVersion: string): boolean {
  const reactMajor = reactVersion.match(/^([^.]+)/);
  return reactMajor !== null && parseInt(reactMajor[0]) >= 17;
}

/**
 * Recurse through `error.cause` chain to set cause on an error.