zustand/esm/shallow.mjs

🐻 Bear necessities for state management in React

function shallow(objA, objB) {
  if (Object.is(objA, objB)) {
    return true;
  }
  if (typeof objA !== "object" || objA === null || typeof objB !== "object" || objB === null) {
    return false;
  }
  const keysA = Object.keys(objA);
  if (keysA.length !== Object.keys(objB).length) {
    return false;
  }
  for (let i = 0; i < keysA.length; i++) {
    if (!Object.prototype.hasOwnProperty.call(objB, keysA[i]) || !Object.is(objA[keysA[i]], objB[keysA[i]])) {
      return false;
    }
  }
  return true;
}

export { shallow as default };