Fix the linter

package.json

@@ -40,7 +40,8 @@
     "samples-test": "cd samples/ && npm link ../ && npm test && cd ../",
     "system-test": "mocha system-test/*.js smoke-test/*.js --timeout 600000",
     "test-no-cover": "mocha test/*.js",
-    "test": "npm run cover"
+    "test": "npm run cover",
+    "fix": "eslint --fix '**/*.js' && npm run prettier"
   },
   "dependencies": {
     "google-gax": "^0.20.0",

src/v1beta1/asset_service_client.js

@@ -72,13 +72,13 @@ class AssetServiceClient {
     // Create a `gaxGrpc` object, with any grpc-specific options
     // sent to the client.
     opts.scopes = this.constructor.scopes;
-    let gaxGrpc = new gax.GrpcClient(opts);
+    const gaxGrpc = new gax.GrpcClient(opts);
 
     // Save the auth object to the client, for use by other methods.
     this.auth = gaxGrpc.auth;
 
     // Determine the client header string.
-    let clientHeader = [
+    const clientHeader = [
       `gl-node/${process.version}`,
       `grpc/${gaxGrpc.grpcVersion}`,
       `gax/${gax.version}`,
@@ -89,7 +89,7 @@ class AssetServiceClient {
     }
 
     // Load the applicable protos.
-    let protos = merge(
+    const protos = merge(
       {},
       gaxGrpc.loadProto(
         path.join(__dirname, '..', '..', 'protos'),
@@ -123,10 +123,10 @@ class AssetServiceClient {
       grpc: gaxGrpc.grpc,
     }).operationsClient(opts);
 
-    let exportAssetsResponse = protoFilesRoot.lookup(
+    const exportAssetsResponse = protoFilesRoot.lookup(
       'google.cloud.asset.v1beta1.ExportAssetsResponse'
     );
-    let exportAssetsMetadata = protoFilesRoot.lookup(
+    const exportAssetsMetadata = protoFilesRoot.lookup(
       'google.cloud.asset.v1beta1.ExportAssetsRequest'
     );
 
@@ -139,7 +139,7 @@ class AssetServiceClient {
     };
 
     // Put together the default options sent with requests.
-    let defaults = gaxGrpc.constructSettings(
+    const defaults = gaxGrpc.constructSettings(
       'google.cloud.asset.v1beta1.AssetService',
       gapicConfig,
       opts.clientConfig,
@@ -153,20 +153,20 @@ class AssetServiceClient {
 
     // Put together the "service stub" for
     // google.cloud.asset.v1beta1.AssetService.
-    let assetServiceStub = gaxGrpc.createStub(
+    const assetServiceStub = gaxGrpc.createStub(
       protos.google.cloud.asset.v1beta1.AssetService,
       opts
     );
 
     // Iterate over each of the methods that the service provides
     // and create an API call method for each.
-    let assetServiceStubMethods = ['exportAssets', 'batchGetAssetsHistory'];
-    for (let methodName of assetServiceStubMethods) {
+    const assetServiceStubMethods = ['exportAssets', 'batchGetAssetsHistory'];
+    for (const methodName of assetServiceStubMethods) {
       this._innerApiCalls[methodName] = gax.createApiCall(
         assetServiceStub.then(
           stub =>
             function() {
-              let args = Array.prototype.slice.call(arguments, 0);
+              const args = Array.prototype.slice.call(arguments, 0);
               return stub[methodName].apply(stub, args);
             }
         ),

test/gapic-v1beta1.js

@@ -18,28 +18,28 @@ const assert = require('assert');
 
 const assetModule = require('../src');
 
-let FAKE_STATUS_CODE = 1;
-let error = new Error();
+const FAKE_STATUS_CODE = 1;
+const error = new Error();
 error.code = FAKE_STATUS_CODE;
 
 describe('AssetServiceClient', () => {
   describe('exportAssets', function() {
     it('invokes exportAssets without error', done => {
-      let client = new assetModule.v1beta1.AssetServiceClient({
+      const client = new assetModule.v1beta1.AssetServiceClient({
         credentials: {client_email: 'bogus', private_key: 'bogus'},
         projectId: 'bogus',
       });
 
       // Mock request
-      let formattedParent = client.projectPath('[PROJECT]');
-      let outputConfig = {};
-      let request = {
+      const formattedParent = client.projectPath('[PROJECT]');
+      const outputConfig = {};
+      const request = {
         parent: formattedParent,
         outputConfig: outputConfig,
       };
 
       // Mock response
-      let expectedResponse = {};
+      const expectedResponse = {};
 
       // Mock Grpc layer
       client._innerApiCalls.exportAssets = mockLongRunningGrpcMethod(
@@ -50,7 +50,7 @@ describe('AssetServiceClient', () => {
       client
         .exportAssets(request)
         .then(responses => {
-          let operation = responses[0];
+          const operation = responses[0];
           return operation.promise();
         })
         .then(responses => {
@@ -63,15 +63,15 @@ describe('AssetServiceClient', () => {
     });
 
     it('invokes exportAssets with error', done => {
-      let client = new assetModule.v1beta1.AssetServiceClient({
+      const client = new assetModule.v1beta1.AssetServiceClient({
         credentials: {client_email: 'bogus', private_key: 'bogus'},
         projectId: 'bogus',
       });
 
       // Mock request
-      let formattedParent = client.projectPath('[PROJECT]');
-      let outputConfig = {};
-      let request = {
+      const formattedParent = client.projectPath('[PROJECT]');
+      const outputConfig = {};
+      const request = {
         parent: formattedParent,
         outputConfig: outputConfig,
       };
@@ -86,7 +86,7 @@ describe('AssetServiceClient', () => {
       client
         .exportAssets(request)
         .then(responses => {
-          let operation = responses[0];
+          const operation = responses[0];
           return operation.promise();
         })
         .then(() => {
@@ -100,7 +100,7 @@ describe('AssetServiceClient', () => {
     });
 
     it('has longrunning decoder functions', () => {
-      let client = new assetModule.v1beta1.AssetServiceClient({
+      const client = new assetModule.v1beta1.AssetServiceClient({
         credentials: {client_email: 'bogus', private_key: 'bogus'},
         projectId: 'bogus',
       });
@@ -117,23 +117,23 @@ describe('AssetServiceClient', () => {
 
   describe('batchGetAssetsHistory', () => {
     it('invokes batchGetAssetsHistory without error', done => {
-      let client = new assetModule.v1beta1.AssetServiceClient({
+      const client = new assetModule.v1beta1.AssetServiceClient({
         credentials: {client_email: 'bogus', private_key: 'bogus'},
         projectId: 'bogus',
       });
 
       // Mock request
-      let formattedParent = client.projectPath('[PROJECT]');
-      let contentType = 'CONTENT_TYPE_UNSPECIFIED';
-      let readTimeWindow = {};
-      let request = {
+      const formattedParent = client.projectPath('[PROJECT]');
+      const contentType = 'CONTENT_TYPE_UNSPECIFIED';
+      const readTimeWindow = {};
+      const request = {
         parent: formattedParent,
         contentType: contentType,
         readTimeWindow: readTimeWindow,
       };
 
       // Mock response
-      let expectedResponse = {};
+      const expectedResponse = {};
 
       // Mock Grpc layer
       client._innerApiCalls.batchGetAssetsHistory = mockSimpleGrpcMethod(
@@ -149,16 +149,16 @@ describe('AssetServiceClient', () => {
     });
 
     it('invokes batchGetAssetsHistory with error', done => {
-      let client = new assetModule.v1beta1.AssetServiceClient({
+      const client = new assetModule.v1beta1.AssetServiceClient({
         credentials: {client_email: 'bogus', private_key: 'bogus'},
         projectId: 'bogus',
       });
 
       // Mock request
-      let formattedParent = client.projectPath('[PROJECT]');
-      let contentType = 'CONTENT_TYPE_UNSPECIFIED';
-      let readTimeWindow = {};
-      let request = {
+      const formattedParent = client.projectPath('[PROJECT]');
+      const contentType = 'CONTENT_TYPE_UNSPECIFIED';
+      const readTimeWindow = {};
+      const request = {
         parent: formattedParent,
         contentType: contentType,
         readTimeWindow: readTimeWindow,
@@ -197,7 +197,7 @@ function mockSimpleGrpcMethod(expectedRequest, response, error) {
 function mockLongRunningGrpcMethod(expectedRequest, response, error) {
   return request => {
     assert.deepStrictEqual(request, expectedRequest);
-    let mockOperation = {
+    const mockOperation = {
       promise: function() {
         return new Promise((resolve, reject) => {
           if (error) {