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parent 2dbadb9c4f
commit faccb4ef34
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--- a/02_advanced/uebungen/u07_string-rekursiv/index.html
+++ b/02_advanced/uebungen/u07_string-rekursiv/index.html
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+<!doctype html>
+<html lang="de">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Übung 7: Rekursive Umkehrung eines Strings</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css" rel="stylesheet" />
+  </head>
+  <body>
+    <main>
+      <div class="container py-5">
+        <div class="alert alert-primary">
+          <h2>Übung 7: Rekursive Umkehrung eines Strings</h2>
+          <p>Schreibe eine rekursive Funktion in JavaScript, die einen gegebenen String umkehrt.</p>
+        </div>
+      </div>
+    </main>
+    <script>
+      'use strict';
+
+      const reverseString = (str) => {
+        // Basisfall
+        if (str.length < 1) {
+          return '';
+        }
+
+        // console.log('str.slice(1): ', str.slice(1));
+
+        return reverseString(str.slice(1)) + str[0];
+        // return '' + 'o' fn("o") + "l" <-- fn("lo") + "l" <--- fn("llo") + "e"  <-- fn("ello") + "h"
+      };
+
+      const reverseString2 = (str) => {
+        return str.split('').reverse().join('');
+      };
+
+      // Test cases
+      console.log(reverseString('hello')); // => "olleh"
+      console.log(reverseString('Recursion')); // => "noisruceR"
+      console.log(reverseString('')); // => ""
+      console.log(reverseString('A')); // => "A"
+    </script>
+  </body>
+</html>