From ed184eff56c0ce710eeda48ec3e71b23f80b7e1e Mon Sep 17 00:00:00 2001
From: Minhao Qiu <minhao.qiu@fau.de>
Date: Mon, 15 Jul 2019 18:10:28 +0200
Subject: [PATCH] udpate

---
 app_7/counter.js    | 14 ++++++++++++++
 app_7/counter1.html | 12 ++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 app_7/counter.js
 create mode 100644 app_7/counter1.html

diff --git a/app_7/counter.js b/app_7/counter.js
new file mode 100644
index 0000000..bde5f05
--- /dev/null
+++ b/app_7/counter.js
@@ -0,0 +1,14 @@
+document.addEventListener('DOMContentLoaded', function() {
+    document.querySelector('button').onclick = count;
+});
+
+let counter = 0;
+
+function count() {
+    counter++;
+    document.querySelector(`#counter`).innerHTML = counter;
+
+    if (counter % 10 === 0) {
+        alert(`Counter is at ${counter}!`);
+    }
+}
diff --git a/app_7/counter1.html b/app_7/counter1.html
new file mode 100644
index 0000000..95f9499
--- /dev/null
+++ b/app_7/counter1.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <script src="counter.js"></script>
+        <title>My website</title>
+    </head>
+
+    <body>
+        <h1 id="counter">0</h1>
+        <button>Click here!</button>
+    </body>
+</html>
-- 
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