From 8bb9f2e2c6628f4e41ceb91d6cdb03717b2d04cc Mon Sep 17 00:00:00 2001
From: Felix Lohmeier <f.lohmeier@web.de>
Date: Wed, 1 Nov 2017 22:20:55 +0000
Subject: [PATCH] Updates kapitel-3.md

Auto commit by GitBook Editor
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 book.json    |  3 +++
 kapitel-3.md | 20 ++++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 book.json

diff --git a/book.json b/book.json
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+{
+    "plugins": ["exercises"]
+}
\ No newline at end of file
diff --git a/kapitel-3.md b/kapitel-3.md
index 30754ae..6c68586 100644
--- a/kapitel-3.md
+++ b/kapitel-3.md
@@ -1,4 +1,24 @@
 # Kapitel 3: Übertragungsprotokolle und Datentransformationen \(02.11.2017\)
 
+{% exercise %}
+Define a variable `x` equal to 10.
 
+{% initial %}
+var x =
+
+{% solution %}
+var x = 10;
+
+{% validation %}
+assert(x == 10);
+
+{% context %}
+// This is context code available everywhere
+// The user will be able to evaluate `exposedVar`
+var exposedVar = 3;
+// ... or call `exposedFunction`
+function exposedFunction {
+    return 3;
+}
+{% endexercise %}