bootstrap-vue/es/utils/loose-equal.js

BootstrapVue provides one of the most comprehensive implementations of Bootstrap 4 components and grid system for Vue.js and with extensive and automated WAI-ARIA accessibility markup.

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

import { isArray } from './array';
import { keys } from './object';

/**
 * Quick object check - this is primarily used to tell
 * Objects from primitive values when we know the value
 * is a JSON-compliant type.
 */
function isObject(obj) {
  return obj !== null && (typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object';
}

/**
 * Check if two values are loosely equal - that is,
 * if they are plain objects, do they have the same shape?
 * Returns boolean true or false
 */
function looseEqual(a, b) {
  if (a === b) return true;
  var isObjectA = isObject(a);
  var isObjectB = isObject(b);
  if (isObjectA && isObjectB) {
    try {
      var isArrayA = isArray(a);
      var isArrayB = isArray(b);
      if (isArrayA && isArrayB) {
        return a.length === b.length && a.every(function (e, i) {
          return looseEqual(e, b[i]);
        });
      } else if (!isArrayA && !isArrayB) {
        var keysA = keys(a);
        var keysB = keys(b);
        return keysA.length === keysB.length && keysA.every(function (key) {
          return looseEqual(a[key], b[key]);
        });
      } else {
        return false;
      }
    } catch (e) {
      return false;
    }
  } else if (!isObjectA && !isObjectB) {
    return String(a) === String(b);
  } else {
    return false;
  }
}

export default looseEqual;