Merge pull request #64 from hppycoder/master-getStorageKeys

Master get storage keys

Author: Yann 'Aaunel' Eves-Hollis

.gitignore

@@ -1,3 +1,4 @@
 node_modules
 .DS_Store
-*.log
+*.log
+.idea

README.md

@@ -47,6 +47,9 @@ The simpliest localStorage module you will ever use. Allowing you to set, get, a
 
   // clear all localStorage values
   storage.clearAll();
+
+  // gets all the keys in the storage system returned as an array
+  storage.getKeys(); // ['key','key2']
   ```
 
 ## Bower

src/angularLocalStorage.js

@@ -11,7 +11,7 @@
 		 * Global Vars
 		 */
 		var storage = (typeof $window.localStorage === 'undefined') ? undefined : $window.localStorage;
-		var supported = !(typeof storage === 'undefined');
+		var supported = (typeof storage !== 'undefined');
         var watchers = {};
 
 		if (supported) {
@@ -200,6 +200,30 @@
 			 */
 			isCookieFallbackActive: function() {
 				return !supported;
+			},
+
+			/**
+			 * Allows the caller to obtain all the keys that are saved in Cookies or LocalStorage. Gets all the keys
+			 * that are saved in LocalStorage or Cookie.
+			 *
+			 * Uses: String.trim() - ECMAScript 1.5+
+			 *
+			 * @returns array
+			 */
+			getKeys: function() {
+				var keys = [];
+
+				if(!supported) {
+					var cookieArr = document.cookie.split(';');
+					for( var cnt = 0, cntLen = cookieArr.length; cnt < cntLen; ++cnt) {
+						keys.push(cookieArr[cnt].split('=')[0].trim());
+					}
+				} else {
+					for (var i = 0, len = localStorage.length; i < len; ++i) {
+						keys.push(localStorage.key(i));
+					}
+				}
+				return keys;
 			}
 		};
 

test/angularLocalStorage.spec.js

@@ -146,4 +146,25 @@ describe('angularLocalStorage module', function () {
 			expect(testValue).toBeNull();
 		});
 	});
-});
+
+	describe('when use getKeys() method all should be returned', function () {
+
+		beforeEach(function () {
+			storage.set('abcKey', 'some test string');
+			storage.set('key123', 'test 123');
+		});
+
+		beforeEach(function () {
+			array = storage.getKeys();
+		});
+
+		it('should return an array equaling the length of two', function () {
+			expect(array.length).toEqual(2);
+		});
+
+		it('should return the same keys that were put into storage', function() {
+			expect(array.indexOf("key123")).toBeGreaterThan(-1);
+			expect(array.indexOf("abcKey")).toBeGreaterThan(-1);
+		});
+	});
+});