The Vowel Code

Author: esadakman

6_kyu/theVowelCode.md

@@ -0,0 +1,42 @@
+## [The Vowel Code](https://www.codewars.com/kata/53697be005f803751e0015aa)
+
+- Step 1: Create a function called `encode()` to replace all the lowercase vowels in a given string with numbers according to the following pattern:
+
+```js
+a -> 1
+e -> 2
+i -> 3
+o -> 4
+u -> 5
+```
+
+- For example, `encode("hello")` would return `"h2ll4"`. There is no need to worry about uppercase vowels in this kata.
+
+<b>Step 2:<b> Now create a function called `decode()` to turn the numbers back into vowels according to the same pattern shown above.
+
+- For example, `decode("h3 th2r2")` would return `"hi there"`.
+
+- For the sake of simplicity, you can assume that any numbers passed into the function will correspond to vowels.
+
+#### Solution:
+
+```js
+function encode(string) {
+  const vowelToNumber = {
+    'a': '1', 'e': '2', 'i': '3', 'o': '4', 'u': '5'
+  };
+  return string.replace(/[aeiou]/g, match => vowelToNumber[match]);
+}
+
+function decode(string) {
+  const numberToVowel = {
+    '1': 'a', '2': 'e', '3': 'i', '4': 'o', '5': 'u'
+  };
+  return string.replace(/[1-5]/g, match => numberToVowel[match]);
+}
+
+console.log(encode("hello")); // 'h2ll4'
+console.log(encode("How are you today?")); // 'H4w 1r2 y45 t4d1y?'
+console.log(decode("h2ll4")); // 'hello'
+console.log(decode("H4w 1r2 y45 t4d1y?")); // 'How are you today?'
+```

README.md

@@ -679,5 +679,12 @@ Solutions to CodeWars programming tasks. I try to update every day
     <td><a href="5 kyu"> </a></td>
     <td><a href="others "></a></td>
   </tr> 
+  <tr>
+    <td><a href=" "> </a></td>
+    <td><a href="7 kyu"> </a></td>
+    <td><a href="https://github.com/esadakman/javaScript-coding-challenges/blob/master/6_kyu/theVowelCode.md">theVowelCode</a></td> 
+    <td><a href="5 kyu"> </a></td>
+    <td><a href="others "></a></td>
+  </tr> 
 </table>
 </p>