@wordpress/is-shallow-equal/build-module/index.js

Test for shallow equality between two objects or arrays.

/**
 * Internal dependencies
 */
import isShallowEqualObjects from './objects';
import isShallowEqualArrays from './arrays';
export { default as isShallowEqualObjects } from './objects';
export { default as isShallowEqualArrays } from './arrays';

/**
 * @typedef {Record<string, any>} ComparableObject
 */

/**
 * Returns true if the two arrays or objects are shallow equal, or false
 * otherwise. Also handles primitive values, just in case.
 *
 * @param {unknown} a First object or array to compare.
 * @param {unknown} b Second object or array to compare.
 *
 * @return {boolean} Whether the two values are shallow equal.
 */
export default function isShallowEqual(a, b) {
  if (a && b) {
    if (a.constructor === Object && b.constructor === Object) {
      return isShallowEqualObjects(a, b);
    } else if (Array.isArray(a) && Array.isArray(b)) {
      return isShallowEqualArrays(a, b);
    }
  }
  return a === b;
}
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