material-ui/lib/utils/shallow-equal.js

Material Design UI components built with React

'use strict';

Object.defineProperty(exports, '__esModule', {
  value: true
});
exports['default'] = shallowEqual;

function shallowEqual(objA, objB) {
  if (objA === objB) {
    return true;
  }

  if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {
    return false;
  }

  var keysA = Object.keys(objA);
  var keysB = Object.keys(objB);

  if (keysA.length !== keysB.length) {
    return false;
  }

  // Test for A's keys different from B.
  var bHasOwnProperty = Object.prototype.hasOwnProperty.bind(objB);
  for (var i = 0; i < keysA.length; i++) {
    if (!bHasOwnProperty(keysA[i]) || objA[keysA[i]] !== objB[keysA[i]]) {
      return false;
    }
  }

  return true;
}

module.exports = exports['default'];