Added old URL paths as aliases and cleaned up some code sections of old posts

content/blog/2015-10-25-functions.md

@@ -5,6 +5,8 @@ date: 2015-10-25T13:48:41+00:00
 author: Brandon Rozek
 layout: post
 guid: https://brandonrozek.com/?p=350
+aliases:
+    - /2015/10/functions/
 permalink: /2015/10/functions/
 medium_post:
   - 'O:11:"Medium_Post":11:{s:16:"author_image_url";N;s:10:"author_url";N;s:11:"byline_name";N;s:12:"byline_email";N;s:10:"cross_link";N;s:2:"id";N;s:21:"follower_notification";N;s:7:"license";N;s:14:"publication_id";N;s:6:"status";N;s:3:"url";N;}'
@@ -27,33 +29,33 @@ Ever had a snippet of code that appears multiple times in different places in yo
 
 To make a function
 
-<pre><code class="language-javascript">    
+```javascript
     var doSomething = function() {
         doStuff;
     }
-</code></pre>
+```
 
 To call the above function to execute
 
-<pre><code class="language-javascript">
+```javascript
     doSomething();
-</code></pre>
+```
 
 ### <a href="#arguments" name="arguments"></a>Arguments {#arguments}
 
 You can also add in arguments (parameters that go inside the paraenthesis next to the word function) for the functions to use.
 
-<pre><code class="language-javascript">
+```javascript
     var add = function(number1, number2) {
         return number1 + number2;
     }
-</code></pre>
+```
 
 And when you use the `return` keyword, like the function above. You can store the value in a variable for future use.
 
-<pre><code class="language-javascript">    
+```javascript
     var total = add(1, 3);
-</code></pre>
+```
 
 <code class="language-javascript">total</code> here will equal `4`
 
@@ -63,16 +65,16 @@ Functions create their own scope, which means that variables created inside the
 
 The snippet below will output an error like <code class="language-javascript">total is not defined</code>
 
-<pre><code class="language-javascript">
+```javascript
     var add = function(number1, number2) {
         var total = number1 + number2;
     }
     console.log(total);
-</code></pre>
+```
 
 Below is a correct example of the concept
 
-<pre><code class="language-javascript">
+```javascript
     //Function below converts km/hr to m/s
     var convert = function(speed) {
         var metersPerHour = speed * 1000;
@@ -80,13 +82,13 @@ Below is a correct example of the concept
         return metersPerSecond;
     }
     var currentSpeed = convert(5);
-</code></pre>
+```
 
 It’s also important to note that functions can use variables outside of it; granted it resides in the same scope.
 
 Here is an example of a variable that doesn&#8217;t reside in the same scope as the function. (The below code will fail)
 
-<pre><code class="language-javascript">
+```javascript
     var something = function() {
         var x = 5;
         var y = 2;
@@ -96,17 +98,17 @@ Here is an example of a variable that doesn&#8217;t reside in the same scope as
         console.log(x + y);
     }
     addXandY();
-</code></pre>
+```
 
 Below, is an example of where the variable does reside in the same scope as the function. Which allows this snippet to execute properly.
 
-<pre><code class="language-javascript">
+```javascript
     var x = 5;
     var addX = function(a) {
         return a + x;
     }
     var sum = addX(6);
-</code></pre>
+```
 
 <code class="language-javascript">sum</code> here will equal <code class="language-javascript">11</code>