lodash/internal/baseIsEqual.js

import baseIsEqualDeep from './baseIsEqualDeep';
import isObject from '../lang/isObject';
import isObjectLike from './isObjectLike';

/**
 * The base implementation of `_.isEqual` without support for `this` binding
 * `customizer` functions.
 *
 * @private
 * @param {*} value The value to compare.
 * @param {*} other The other value to compare.
 * @param {Function} [customizer] The function to customize comparing values.
 * @param {boolean} [isLoose] Specify performing partial comparisons.
 * @param {Array} [stackA] Tracks traversed `value` objects.
 * @param {Array} [stackB] Tracks traversed `other` objects.
 * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
 */
function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) {
  if (value === other) {
    return true;
  }
  if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
    return value !== value && other !== other;
  }
  return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB);
}

export default baseIsEqual;