feat(frontend): clear input fields on success

src/static/webldappasswd.js

@@ -70,13 +70,26 @@ function hideModal() {
 
 FIELDS = ['username', 'old_password', 'new_password']
 
+function mapFields(thunk) {
+  for (fieldIndex in FIELDS) {
+    let fieldName = FIELDS[fieldIndex]
+    let field = document.querySelectorAll(`input[name=${fieldName}]`)[0];
+    thunk(field, fieldName);
+  }
+}
+
+function clearFields() {
+  mapFields(field => {
+    field.value = "";
+  });
+}
+
 function changePasswords() {
   let query = {};
 
-  for (field in FIELDS) {
+  mapFields((field, fieldName) => {
-    let selector = `input[name=${FIELDS[field]}]`;
+    query[fieldName] = field.value;
-    query[FIELDS[field]] = document.querySelectorAll(selector)[0].value;
+  });
-  }
 
   showModal("Wait");
 
@@ -92,6 +105,7 @@ function changePasswords() {
   }).then(response => {
       if(response.success) {
         showModal("Success");
+        clearFields();
       } else {
         showModal(response.message);
       }