diff --git a/exercises/proxies/exo.js b/exercises/proxies/exo.js
index 2cd763d..ef64993 100644
--- a/exercises/proxies/exo.js
+++ b/exercises/proxies/exo.js
@@ -1,5 +1,18 @@
 let traps = {
-    /* votre solution ici */
+  /* votre solution ici */
+  set: function (target, prop, value) {
+    if (!isNaN(prop) && !target.includes(value)) {
+      target.push(value.toLowerCase());
+    }
+    return true
+  },
+
+  get: function (target, prop) {
+    if (isNaN(prop)) {
+      return target[prop];
+    }
+    return target[prop].replace(/\W/g, '');
+  }
 };
 
 module.exports = {traps};