Add _.mockArray, _.mockFalse, _.mockObject, _.mockString, and _.mockTrue.

lodash.js

@@ -1420,19 +1420,21 @@
      * `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, `isBoolean`,
      * `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, `isEqualWith`,
      * `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, `isMap`,
-     * `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, `isNumber`,
-     * `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, `isSafeInteger`,
-     * `isSet`, `isString`, `isUndefined`, `isTypedArray`, `isWeakMap`, `isWeakSet`,
-     * `join`, `kebabCase`, `last`, `lastIndexOf`, `lowerCase`, `lowerFirst`,
-     * `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, `min`, `minBy`, `multiply`,
-     * `noConflict`, `noop`, `now`, `nth`, `pad`, `padEnd`, `padStart`, `parseInt`,
-     * `pop`, `random`, `reduce`, `reduceRight`, `repeat`, `result`, `round`,
-     * `runInContext`, `sample`, `shift`, `size`, `snakeCase`, `some`, `sortedIndex`,
-     * `sortedIndexBy`, `sortedLastIndex`, `sortedLastIndexBy`, `startCase`,
-     * `startsWith`, `subtract`, `sum`, `sumBy`, `template`, `times`, `toFinite`,
-     * `toInteger`, `toJSON`, `toLength`, `toLower`, `toNumber`, `toSafeInteger`,
-     * `toString`, `toUpper`, `trim`, `trimEnd`, `trimStart`, `truncate`, `unescape`,
-     * `uniqueId`, `upperCase`, `upperFirst`, `value`, and `words`
+     * `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
+     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
+     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
+     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
+     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
+     * `min`, `minBy`, `mockArray`, `mockFalse`, `mockObject`, `mockString`,
+     * `mockTrue`, multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, `padEnd`,
+     * `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, `repeat`,
+     * `result`, `round`, `runInContext`, `sample`, `shift`, `size`, `snakeCase`,
+     * `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, `sortedLastIndexBy`,
+     * `startCase`, `startsWith`, `subtract`, `sum`, `sumBy`, `template`, `times`,
+     * `toFinite`, `toInteger`, `toJSON`, `toLength`, `toLower`, `toNumber`,
+     * `toSafeInteger`, `toString`, `toUpper`, `trim`, `trimEnd`, `trimStart`,
+     * `truncate`, `unescape`, `uniqueId`, `upperCase`, `upperFirst`, `value`,
+     * and `words`
      *
      * @name _
      * @constructor
@@ -5420,9 +5422,7 @@
 
     // Fallback for IE < 11.
     if (!getOwnPropertySymbols) {
-      getSymbols = function() {
-        return [];
-      };
+      getSymbols = mockArray;
     }
 
     /**
@@ -14644,10 +14644,12 @@
      * @returns {Function} Returns the new constant function.
      * @example
      *
-     * var object = { 'user': 'fred' };
-     * var getter = _.constant(object);
+     * var objects = _.times(2, _.constant({ 'a': 1 }));
      *
-     * getter() === object;
+     * console.log(objects);
+     * // => [{ 'a': 1 }, { 'a': 1 }]
+     *
+     * console.log(objects[0] === objects[1]);
      * // => true
      */
     function constant(value) {
@@ -14716,7 +14718,7 @@
      *
      * var object = { 'user': 'fred' };
      *
-     * _.identity(object) === object;
+     * console.log(_.identity(object) === object);
      * // => true
      */
     function identity(value) {
@@ -14956,6 +14958,95 @@
       return object;
     }
 
+    /**
+     * A method that returns a new empty array.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {Array} Returns the new empty array.
+     * @example
+     *
+     * var arrays = _.times(2, _.mockArray);
+     *
+     * console.log(arrays);
+     * // => [[], []]
+     *
+     * console.log(arrays[0] === arrays[1]);
+     * // => false
+     */
+    function mockArray() {
+      return [];
+    }
+
+    /**
+     * A method that returns `false`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {boolean} Returns `false`.
+     * @example
+     *
+     * _.times(2 _.mockFalse);
+     * // => [false, false]
+     */
+    var mockFalse = constant(false);
+
+    /**
+     * A method that returns a new empty object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {Object} Returns the new empty object.
+     * @example
+     *
+     * var objects = _.times(2, _.mockObject);
+     *
+     * console.log(objects);
+     * // => [{}, {}]
+     *
+     * console.log(objects[0] === objects[1]);
+     * // => false
+     */
+    function mockObject() {
+      return {};
+    }
+
+    /**
+     * A method that returns an empty string.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {string} Returns the empty string.
+     * @example
+     *
+     * _.times(2, _.mockString);
+     * // => ['', '']
+     */
+    var mockString = constant('');
+
+    /**
+     * A method that returns `true`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {boolean} Returns `true`.
+     * @example
+     *
+     * _.times(2, _.mockTrue);
+     * // => [true, true]
+     */
+    var mockTrue = constant(true);
+
     /**
      * Reverts the `_` variable to its previous value and returns a reference to
      * the `lodash` function.
@@ -14977,8 +15068,7 @@
     }
 
     /**
-     * A no-operation function that returns `undefined` regardless of the
-     * arguments it receives.
+     * A method that returns `undefined`.
      *
      * @static
      * @memberOf _
@@ -14986,10 +15076,8 @@
      * @category Util
      * @example
      *
-     * var object = { 'user': 'fred' };
-     *
-     * _.noop(object) === undefined;
-     * // => true
+     * _.times(2, _.noop);
+     * // => [undefined, undefined]
      */
     function noop() {
       // No operation performed.
@@ -15919,6 +16007,11 @@
     lodash.meanBy = meanBy;
     lodash.min = min;
     lodash.minBy = minBy;
+    lodash.mockArray = mockArray;
+    lodash.mockFalse = mockFalse;
+    lodash.mockObject = mockObject;
+    lodash.mockTrue = mockTrue;
+    lodash.mockString = mockString;
     lodash.multiply = multiply;
     lodash.nth = nth;
     lodash.noConflict = noConflict;