From 583496c632bf05374a7271bbdf3cd2afa905f31d Mon Sep 17 00:00:00 2001
From: Justin Beckwith <beckwith@google.com>
Date: Wed, 19 Sep 2018 20:51:35 -0700
Subject: [PATCH 1/2] Enable prefer-const in the eslint config

---
 .eslintrc.yml       | 1 +
 samples/concepts.js | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/.eslintrc.yml b/.eslintrc.yml
index 65f1dce6c..73eeec276 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -12,3 +12,4 @@ rules:
   eqeqeq: error
   no-warning-comments: warn
   no-var: error
+  prefer-const: error
diff --git a/samples/concepts.js b/samples/concepts.js
index 6f5ac3705..c1d1a7ad7 100644
--- a/samples/concepts.js
+++ b/samples/concepts.js
@@ -560,7 +560,7 @@ class Metadata extends TestHelper {
         });
 
         console.log('Properties by Kind:');
-        for (let key in propertiesByKind) {
+        for (const key in propertiesByKind) {
           console.log(key, propertiesByKind[key]);
         }
 
@@ -599,7 +599,7 @@ class Metadata extends TestHelper {
         });
 
         console.log('Task property representations:');
-        for (let key in representationsByProperty) {
+        for (const key in representationsByProperty) {
           console.log(key, representationsByProperty[key]);
         }
 

From d61f7dca2624ac888a7e0549abb07da90902d63e Mon Sep 17 00:00:00 2001
From: Justin Beckwith <beckwith@google.com>
Date: Thu, 20 Sep 2018 13:25:49 -0700
Subject: [PATCH 2/2] fixy

---
 package.json               | 3 ++-
 src/v1/datastore_client.js | 2 +-
 test/transaction.js        | 4 +---
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/package.json b/package.json
index aab123e07..a5b03b4fd 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,8 @@
     "samples-test": "cd samples/ && npm link ../ && npm test && cd ../",
     "test-no-cover": "mocha test/*.js",
     "test": "npm run cover",
-    "system-test": "mocha system-test/*.js --timeout 600000"
+    "system-test": "mocha system-test/*.js --timeout 600000",
+    "fix": "eslint '**/*.js' --fix && npm run prettier"
   },
   "dependencies": {
     "@google-cloud/projectify": "^0.3.0",
diff --git a/src/v1/datastore_client.js b/src/v1/datastore_client.js
index 0e00048c6..ab66b76d8 100644
--- a/src/v1/datastore_client.js
+++ b/src/v1/datastore_client.js
@@ -132,7 +132,7 @@ class DatastoreClient {
       'allocateIds',
       'reserveIds',
     ];
-    for (let methodName of datastoreStubMethods) {
+    for (const methodName of datastoreStubMethods) {
       this._innerApiCalls[methodName] = gax.createApiCall(
         datastoreStub.then(
           stub =>
diff --git a/test/transaction.js b/test/transaction.js
index a3a7717c0..119be0658 100644
--- a/test/transaction.js
+++ b/test/transaction.js
@@ -119,8 +119,6 @@ describe('Transaction', function() {
     });
 
     it('should localize request function', function(done) {
-      let transaction;
-
       const fakeDataset = {
         request_: {
           bind: function(context) {
@@ -136,7 +134,7 @@ describe('Transaction', function() {
         },
       };
 
-      transaction = new Transaction(fakeDataset);
+      const transaction = new Transaction(fakeDataset);
     });
 
     it('should localize default properties', function() {