🆙 Update Demo examples

Author: nelson6e65

demo/Example.php

@@ -8,26 +8,7 @@
  * @since 1.0.0
  * @author Nelson Martell <nelson6e65@gmail.com>
  */
-class Example implements IDemo
+class Example extends ExampleClass
 {
-    /**
-     *
-     * @var string
-     */
-    protected $example = null;
-
-    public function __construct($example = 'demo')
-    {
-        $this->example = $example;
-    }
-
-    public function isReady()
-    {
-        return $this->example !== null;
-    }
-
-    protected function isDemo()
-    {
-        return $this->example === 'demo';
-    }
+    use ExampleTrait;
 }

demo/ExampleClass.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace NelsonMartell\VuePress\Demo;
+
+/**
+ * Example class.
+ *
+ * @since 1.0.0
+ * @author Nelson Martell <nelson6e65@gmail.com>
+ */
+class ExampleClass implements IDemo
+{
+    /**
+     *
+     * @var string
+     */
+    protected $example = null;
+
+    public function __construct($example = 'demo')
+    {
+        $this->example = $example;
+    }
+
+    public function isReady()
+    {
+        return $this->example !== null;
+    }
+
+    final protected function isDemo()
+    {
+        return $this->example === 'demo';
+    }
+}

demo/ExampleTrait.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace NelsonMartell\VuePress\Demo;
+
+/**
+ * Example trait.
+ *
+ * @since 1.0.0
+ * @author Nelson Martell <nelson6e65@gmail.com>
+ */
+trait ExampleTrait
+{
+    protected function explain()
+    {
+        return 'Explanation';
+    }
+}

demo/functions.php

@@ -6,7 +6,7 @@
  * An example function.
  *
  * @param int         $index Index.
- * @param string|null $name  Name.
+ * @param string|null $title  Name.
  *
  * @return string
  *