License/formatting

Author: sam-gc

packages-exp/auth-exp/src/core/util/event_id.test.ts

@@ -1,3 +1,20 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 import { expect } from 'chai';
 import { _generateEventId } from './event_id';
 
@@ -13,4 +30,4 @@ describe('core/util/event_id', () => {
   it('above-15 digit id', () => {
     expect(_generateEventId('', 20)).to.have.length(20);
   });
-});
+});

packages-exp/auth-exp/src/core/util/event_id.ts

@@ -20,11 +20,19 @@ const MAX_RANDOM_DIGITS = 15;
 export function _generateEventId(prefix = '', digits = 10): string {
   // This array breaks down digits into a list of numbers, maxed at 15, that
   // sums to digits. For example, 10 becomes [10] and 16 becomes [15, 1].
-  const digitBreakdown = Array(Math.floor(digits / MAX_RANDOM_DIGITS)).fill(MAX_RANDOM_DIGITS);
+  const digitBreakdown = Array(Math.floor(digits / MAX_RANDOM_DIGITS)).fill(
+    MAX_RANDOM_DIGITS
+  );
   if (digits % MAX_RANDOM_DIGITS) {
     digitBreakdown.push(digits % MAX_RANDOM_DIGITS);
   }
 
-  const random = digitBreakdown.map(digits => Math.floor(Math.random() * Math.pow(10, digits)).toString().padStart(digits, '0')).join('');
+  const random = digitBreakdown
+    .map(digits =>
+      Math.floor(Math.random() * Math.pow(10, digits))
+        .toString()
+        .padStart(digits, '0')
+    )
+    .join('');
   return prefix + random;
 }