react app

react-app/node_modules/lodash/lang/isEqual.js

@@ -0,0 +1,54 @@
+var baseIsEqual = require('../internal/baseIsEqual'),
+    bindCallback = require('../internal/bindCallback');
+
+/**
+ * Performs a deep comparison between two values to determine if they are
+ * equivalent. If `customizer` is provided it's invoked to compare values.
+ * If `customizer` returns `undefined` comparisons are handled by the method
+ * instead. The `customizer` is bound to `thisArg` and invoked with up to
+ * three arguments: (value, other [, index|key]).
+ *
+ * **Note:** This method supports comparing arrays, booleans, `Date` objects,
+ * numbers, `Object` objects, regexes, and strings. Objects are compared by
+ * their own, not inherited, enumerable properties. Functions and DOM nodes
+ * are **not** supported. Provide a customizer function to extend support
+ * for comparing other values.
+ *
+ * @static
+ * @memberOf _
+ * @alias eq
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @param {Function} [customizer] The function to customize value comparisons.
+ * @param {*} [thisArg] The `this` binding of `customizer`.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ * @example
+ *
+ * var object = { 'user': 'fred' };
+ * var other = { 'user': 'fred' };
+ *
+ * object == other;
+ * // => false
+ *
+ * _.isEqual(object, other);
+ * // => true
+ *
+ * // using a customizer callback
+ * var array = ['hello', 'goodbye'];
+ * var other = ['hi', 'goodbye'];
+ *
+ * _.isEqual(array, other, function(value, other) {
+ *   if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) {
+ *     return true;
+ *   }
+ * });
+ * // => true
+ */
+function isEqual(value, other, customizer, thisArg) {
+  customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
+  var result = customizer ? customizer(value, other) : undefined;
+  return  result === undefined ? baseIsEqual(value, other, customizer) : !!result;
+}
+
+module.exports = isEqual;