added comments

frontend/src/views/Register.vue

@@ -46,21 +46,30 @@ export default {
             this.showBackError = false; //TODO
         },
         onSubmit: async function(){
+            // If we press back, we go back
+            if (event.submitter.id=='back') {
+                this.$router.push('/');
+            }
+
+            // Test if password match the confirm password
             this.showPwdError = (document.getElementById('password1').value !== document.getElementById('password2').value);
             if (this.showPwdError) {
                 return;
             }
+
+            // Test if mail is valid
             this.showMailError = !validateEmail(document.getElementById('mail').value);
             if (this.showMailError) {
                 return;
             }
+
+            // Test if Email exist/Pseudo exist
             this.showBackError = false; //TODO
             if (this.showBackError) {
                 return;
             }
-            if (event.submitter.id=='back') {
-                this.$router.push('/');
-            }
+
+            // Post new user if all tests are ok
             if (event.submitter.id=='validate') {
                 let request = await fetch('http://localhost/index.php/user',
                 {
@@ -86,6 +95,7 @@ export default {
         }
     }
 }
+// Function to check if the str email is valide (true if this is the case)
 function validateEmail (email) {
     const re = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
     return re.test(String(email).toLowerCase());