diff --git a/README.md b/README.md
index 4edf2fb..d0a681c 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,8 @@ Helpers for strings and objects, an accurate timer and some useful angular spefi
 
 **`import { Timer } from 'papilion'`**
 
+For full list of methods and classes, see Documentation
+
 # Documentation
 https://jakobsegerslatt.github.io/papilion/
 
diff --git a/docs/classes/_timer_.timer.html b/docs/classes/_timer_.timer.html
index 9098a11..3e078fc 100644
--- a/docs/classes/_timer_.timer.html
+++ b/docs/classes/_timer_.timer.html
@@ -139,7 +139,7 @@ <h3>constructor</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/timer.ts#L26">timer.ts:26</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/timer.ts#L26">timer.ts:26</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -164,7 +164,7 @@ <h3><span class="tsd-flag ts-flagPrivate">Private</span> duration</h3>
 					<div class="tsd-signature tsd-kind-icon">duration<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/timer.ts#L26">timer.ts:26</a></li>
+							<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/timer.ts#L26">timer.ts:26</a></li>
 						</ul>
 					</aside>
 					<div class="tsd-comment tsd-typography">
@@ -179,7 +179,7 @@ <h3><span class="tsd-flag ts-flagPrivate">Private</span> start<wbr>Time</h3>
 					<div class="tsd-signature tsd-kind-icon">start<wbr>Time<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/timer.ts#L23">timer.ts:23</a></li>
+							<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/timer.ts#L23">timer.ts:23</a></li>
 						</ul>
 					</aside>
 					<div class="tsd-comment tsd-typography">
@@ -194,7 +194,7 @@ <h3><span class="tsd-flag ts-flagPrivate">Private</span> timer<wbr>Id</h3>
 					<div class="tsd-signature tsd-kind-icon">timer<wbr>Id<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Timeout</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/timer.ts#L17">timer.ts:17</a></li>
+							<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/timer.ts#L17">timer.ts:17</a></li>
 						</ul>
 					</aside>
 					<div class="tsd-comment tsd-typography">
@@ -209,7 +209,7 @@ <h3><span class="tsd-flag ts-flagPrivate">Private</span> total<wbr>Ticks</h3>
 					<div class="tsd-signature tsd-kind-icon">total<wbr>Ticks<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/timer.ts#L20">timer.ts:20</a></li>
+							<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/timer.ts#L20">timer.ts:20</a></li>
 						</ul>
 					</aside>
 					<div class="tsd-comment tsd-typography">
@@ -231,7 +231,7 @@ <h3>reset</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/timer.ts#L39">timer.ts:39</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/timer.ts#L39">timer.ts:39</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -255,7 +255,7 @@ <h3>start</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/timer.ts#L48">timer.ts:48</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/timer.ts#L48">timer.ts:48</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -286,7 +286,7 @@ <h3>stop</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/timer.ts#L76">timer.ts:76</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/timer.ts#L76">timer.ts:76</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
diff --git a/docs/index.html b/docs/index.html
index 94602b2..2636c32 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -71,6 +71,7 @@ <h1 id="papilion">papilion</h1>
 				<h1 id="how-to-use">How to use</h1>
 				<p><strong><code>npm i papilion</code></strong></p>
 				<p><strong><code>import { Timer } from &#39;papilion&#39;</code></strong></p>
+				<p>For full list of methods and classes, see Documentation</p>
 				<h1 id="documentation">Documentation</h1>
 				<p><a href="https://jakobsegerslatt.github.io/papilion/">https://jakobsegerslatt.github.io/papilion/</a></p>
 			</div>
diff --git a/docs/modules/_angular_utils_.html b/docs/modules/_angular_utils_.html
index c605f1b..c54c46b 100644
--- a/docs/modules/_angular_utils_.html
+++ b/docs/modules/_angular_utils_.html
@@ -91,7 +91,7 @@ <h3>throw<wbr>IfAlready<wbr>Loaded</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/angular-utils.ts#L16">angular-utils.ts:16</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/angular-utils.ts#L16">angular-utils.ts:16</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
diff --git a/docs/modules/_component_decorators_.html b/docs/modules/_component_decorators_.html
index 69a46c0..b0be254 100644
--- a/docs/modules/_component_decorators_.html
+++ b/docs/modules/_component_decorators_.html
@@ -91,7 +91,7 @@ <h3>Storage</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/component-decorators.ts#L7">component-decorators.ts:7</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/component-decorators.ts#L7">component-decorators.ts:7</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
diff --git a/docs/modules/_object_utils_.html b/docs/modules/_object_utils_.html
index 1649572..a81c241 100644
--- a/docs/modules/_object_utils_.html
+++ b/docs/modules/_object_utils_.html
@@ -98,7 +98,7 @@ <h3>clear<wbr>Nulls</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/object-utils.ts#L28">object-utils.ts:28</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/object-utils.ts#L28">object-utils.ts:28</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -152,9 +152,11 @@ <h3>clone</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/object-utils.ts#L52">object-utils.ts:52</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/object-utils.ts#L56">object-utils.ts:56</a></li>
 								</ul>
 							</aside>
+							<div class="tsd-comment tsd-typography">
+							</div>
 							<h4 class="tsd-type-parameters-title">Type parameters</h4>
 							<ul class="tsd-type-parameters">
 								<li>
@@ -168,6 +170,8 @@ <h5>obj: <span class="tsd-signature-type">T</span><span class="tsd-signature-sym
 								</li>
 							</ul>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">T</span></h4>
+							<p>A copy of @param obj
+							It can be an array, object, class or primitive type.</p>
 						</li>
 					</ul>
 				</section>
@@ -181,7 +185,7 @@ <h3>convert<wbr>ToTyped<wbr>Class</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/object-utils.ts#L69">object-utils.ts:69</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/object-utils.ts#L73">object-utils.ts:73</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -216,13 +220,13 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">T</span><
 					<a name="findkeyforvalue" class="tsd-anchor"></a>
 					<h3>find<wbr>Key<wbr>For<wbr>Value</h3>
 					<ul class="tsd-signatures tsd-kind-function tsd-parent-kind-external-module">
-						<li class="tsd-signature tsd-kind-icon">find<wbr>Key<wbr>For<wbr>Value<span class="tsd-signature-symbol">(</span>obj<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">any</span>, value<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">any</span></li>
+						<li class="tsd-signature tsd-kind-icon">find<wbr>Key<wbr>For<wbr>Value<span class="tsd-signature-symbol">(</span>obj<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">any</span>, value<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">undefined</span></li>
 					</ul>
 					<ul class="tsd-descriptions">
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/object-utils.ts#L87">object-utils.ts:87</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/object-utils.ts#L91">object-utils.ts:91</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -246,7 +250,12 @@ <h5>value: <span class="tsd-signature-type">any</span></h5>
 									</div>
 								</li>
 							</ul>
-							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">any</span></h4>
+							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">string</span>
+								<span class="tsd-signature-symbol"> | </span>
+								<span class="tsd-signature-type">number</span>
+								<span class="tsd-signature-symbol"> | </span>
+								<span class="tsd-signature-type">undefined</span>
+							</h4>
 						</li>
 					</ul>
 				</section>
@@ -260,7 +269,7 @@ <h3>flatten<wbr>Tree</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/object-utils.ts#L104">object-utils.ts:104</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/object-utils.ts#L108">object-utils.ts:108</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -299,13 +308,13 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">T</span><
 					<a name="grouparraybyproperty" class="tsd-anchor"></a>
 					<h3>group<wbr>Array<wbr>ByProperty</h3>
 					<ul class="tsd-signatures tsd-kind-function tsd-parent-kind-external-module tsd-has-type-parameter">
-						<li class="tsd-signature tsd-kind-icon">group<wbr>Array<wbr>ByProperty&lt;T&gt;<span class="tsd-signature-symbol">(</span>array<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">[]</span>, propertyName<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">[]</span></li>
+						<li class="tsd-signature tsd-kind-icon">group<wbr>Array<wbr>ByProperty&lt;T&gt;<span class="tsd-signature-symbol">(</span>array<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">[]</span>, key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">function</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">[]</span></li>
 					</ul>
 					<ul class="tsd-descriptions">
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/object-utils.ts#L119">object-utils.ts:119</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/object-utils.ts#L123">object-utils.ts:123</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -329,7 +338,7 @@ <h5>array: <span class="tsd-signature-type">T</span><span class="tsd-signature-s
 									</div>
 								</li>
 								<li>
-									<h5>propertyName: <span class="tsd-signature-type">string</span></h5>
+									<h5>key: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">function</span></h5>
 								</li>
 							</ul>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">[]</span></h4>
@@ -346,7 +355,7 @@ <h3>is<wbr>Object</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/object-utils.ts#L188">object-utils.ts:188</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/object-utils.ts#L196">object-utils.ts:196</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -374,7 +383,7 @@ <h3>remove<wbr>Duplicates</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/object-utils.ts#L199">object-utils.ts:199</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/object-utils.ts#L207">object-utils.ts:207</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
diff --git a/docs/modules/_string_utils_.html b/docs/modules/_string_utils_.html
index f57b35e..04e5dd5 100644
--- a/docs/modules/_string_utils_.html
+++ b/docs/modules/_string_utils_.html
@@ -95,7 +95,7 @@ <h3>contains</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/string-utils.ts#L20">string-utils.ts:20</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/string-utils.ts#L20">string-utils.ts:20</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -127,7 +127,7 @@ <h3>create<wbr>Guid</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/string-utils.ts#L6">string-utils.ts:6</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/string-utils.ts#L6">string-utils.ts:6</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -148,7 +148,7 @@ <h3>is<wbr>Not<wbr>Nullor<wbr>Empty</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/string-utils.ts#L36">string-utils.ts:36</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/string-utils.ts#L36">string-utils.ts:36</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -183,7 +183,7 @@ <h3>pascal<wbr>Case</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/string-utils.ts#L45">string-utils.ts:45</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/string-utils.ts#L45">string-utils.ts:45</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -215,7 +215,7 @@ <h3>trim<wbr>String</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/5f6099f/src/string-utils.ts#L56">string-utils.ts:56</a></li>
+									<li>Defined in <a href="https://github.com/JakobSegerslatt/papilion/blob/6595f1b/src/string-utils.ts#L56">string-utils.ts:56</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">