diff --git a/chapter01/1.2 - Check Perm/checkPermute.js b/chapter01/1.2 - Check Perm/checkPermute.js
index 0cb0931..0994f52 100644
--- a/chapter01/1.2 - Check Perm/checkPermute.js	
+++ b/chapter01/1.2 - Check Perm/checkPermute.js	
@@ -14,6 +14,8 @@ var checkPermute = function(stringOne, stringTwo) {
 // Tests
 console.log(checkPermute('aba', 'aab'), true);
 
+console.log(checkPermute('aba', 'bba'), false);
+
 console.log(checkPermute('aba', 'aaba'), false);
 
 console.log(checkPermute('aba', 'aa'), false);
\ No newline at end of file
diff --git a/chapter01/1.3 - URLify/urlify-4.js b/chapter01/1.3 - URLify/urlify-4.js
new file mode 100644
index 0000000..5ba3c8a
--- /dev/null
+++ b/chapter01/1.3 - URLify/urlify-4.js	
@@ -0,0 +1,6 @@
+function urlify(s) {
+    s = s.split(' ').filter(el => el !== '').join('%20');;
+    return s;
+}
+
+console.log(urlify('Mr John Smith     '));
\ No newline at end of file