feat: inversing-a-string js challenge

Author: IbatoLionDev

1-EASY/JavaScript/1-inversing-a-string/article.md

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+# Challenge Description and Solution
+
+## English Version
+
+### Challenge Description
+Given a string, create a function that reverses it without using built-in reverse methods. This will help you practice loops and index handling.
+
+### Code Explanation
+The `reverseString` function iterates over the input string from the end to the beginning, concatenating characters to build the reversed string.
+
+### Relevant Code Snippet
+
+```javascript
+function reverseString(s) {
+    let reversedStr = "";
+    for (let i = s.length - 1; i >= 0; i--) {
+        reversedStr += s[i];
+    }
+    return reversedStr;
+}
+```
+
+### Example Usage
+
+```javascript
+const testString = "hello";
+console.log("Original string:", testString);
+console.log("Reversed string:", reverseString(testString));
+```
+
+---
+
+## Versión en Español
+
+### Descripción del Reto
+Dada una cadena, crea una función que la invierta sin usar métodos integrados de inversión. Esto te ayudará a practicar bucles y manejo de índices.
+
+### Explicación del Código
+La función `reverseString` itera sobre la cadena de entrada desde el final hasta el principio, concatenando caracteres para construir la cadena invertida.
+
+### Fragmento de Código Relevante
+
+```javascript
+function reverseString(s) {
+    let reversedStr = "";
+    for (let i = s.length - 1; i >= 0; i--) {
+        reversedStr += s[i];
+    }
+    return reversedStr;
+}
+```
+
+### Ejemplo de Uso
+
+```javascript
+const testString = "hello";
+console.log("Original string:", testString);
+console.log("Reversed string:", reverseString(testString));

1-EASY/JavaScript/1-inversing-a-string/proposed-solution/main.js

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+// Challenge: Given a string, create a function that reverses it without using built-in reverse methods.
+// This will help you practice loops and index handling.
+
+function reverseString(s) {
+    let reversedStr = "";
+    for (let i = s.length - 1; i >= 0; i--) {
+        reversedStr += s[i];
+    }
+    return reversedStr;
+}
+
+// Example usage
+const testString = "hello";
+console.log("Original string:", testString);
+console.log("Reversed string:", reverseString(testString));