@mui/x-charts/esm/internals/shallowEqual.js

The community edition of MUI X Charts components.

/**
 * Performs equality by iterating through keys on an object and returning false
 * when any key has values which are not strictly equal between the arguments.
 * Returns true when the values of all keys are strictly equal.
 *
 * Source: https://github.com/facebook/react/blob/c2a196174763e0b4f16ed1c512ed4442b062395e/packages/shared/shallowEqual.js#L18
 */
export function shallowEqual(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);
  const keysB = Object.keys(objB);
  if (keysA.length !== keysB.length) {
    return false;
  }

  // Test for A's keys different from B.
  for (let i = 0; i < keysA.length; i += 1) {
    const currentKey = keysA[i];
    if (!Object.prototype.hasOwnProperty.call(objB, currentKey) ||
    // @ts-ignore
    !Object.is(objA[currentKey], objB[currentKey])) {
      return false;
    }
  }
  return true;
}