diff --git a/.eslintrc b/.eslintrc
index 6aec251478c720..a77195180ce1f8 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -17,6 +17,8 @@ ecmaFeatures:
 rules:
   # Possible Errors
   # list: https://github.com/eslint/eslint/tree/master/docs/rules#possible-errors
+  ## disallow trailing commas on final line of object/array declaration
+  comma-dangle: 2
   ## check debugger sentence
   no-debugger: 2
   ## check duplicate arguments
diff --git a/lib/cluster.js b/lib/cluster.js
index c8bf658d5b32a8..c6ae95d57a7fca 100644
--- a/lib/cluster.js
+++ b/lib/cluster.js
@@ -647,7 +647,7 @@ function workerInit() {
       close: close,
       listen: listen,
       ref: ref,
-      unref: unref,
+      unref: unref
     };
     if (message.sockname) {
       handle.getsockname = getsockname;  // TCP handles only.
diff --git a/lib/internal/child_process.js b/lib/internal/child_process.js
index 6487de2e9efa08..2cb831f953d01a 100644
--- a/lib/internal/child_process.js
+++ b/lib/internal/child_process.js
@@ -549,7 +549,7 @@ function setupChannel(target, channel) {
         this._handleQueue.push({
           callback: callback,
           handle: handle,
-          message: message.msg,
+          message: message.msg
         });
         return this._handleQueue.length === 1;
       }
@@ -575,7 +575,7 @@ function setupChannel(target, channel) {
       this._handleQueue.push({
         callback: callback,
         handle: null,
-        message: message,
+        message: message
       });
       return this._handleQueue.length === 1;
     }
diff --git a/test/addons/make-callback/test.js b/test/addons/make-callback/test.js
index f3c98770ef335a..99e168f346a392 100644
--- a/test/addons/make-callback/test.js
+++ b/test/addons/make-callback/test.js
@@ -30,7 +30,7 @@ const recv = {
     assert.strictEqual(this, recv);
     assert.strictEqual(x, 1337);
     return 42;
-  }),
+  })
 };
 
 assert.strictEqual(42, makeCallback(recv, 'one'));
diff --git a/test/addons/repl-domain-abort/test.js b/test/addons/repl-domain-abort/test.js
index 5591b4f2b38e90..f7c430ee285460 100644
--- a/test/addons/repl-domain-abort/test.js
+++ b/test/addons/repl-domain-abort/test.js
@@ -20,7 +20,7 @@ var lines = [
   // This line shouldn't cause an assertion error.
   'require(\'' + buildPath + '\')' +
   // Log output to double check callback ran.
-  '.method(function() { console.log(\'cb_ran\'); });',
+  '.method(function() { console.log(\'cb_ran\'); });'
 ];
 
 var dInput = new stream.Readable();
diff --git a/test/common.js b/test/common.js
index 43f4362b45cbfe..358f3744c5b46f 100644
--- a/test/common.js
+++ b/test/common.js
@@ -90,7 +90,7 @@ exports.localIPv6Hosts = [
   'ipv6-loopback',
 
   // Typically universal
-  'localhost',
+  'localhost'
 ];
 
 Object.defineProperty(exports, 'inFreeBSDJail', {
diff --git a/test/debugger/test-debugger-repl-restart.js b/test/debugger/test-debugger-repl-restart.js
index 206cd2e7417627..926d627a899b8c 100644
--- a/test/debugger/test-debugger-repl-restart.js
+++ b/test/debugger/test-debugger-repl-restart.js
@@ -14,7 +14,7 @@ initialLines.splice(2, 0, /Restoring/, /Warning/);
 
 // Restart the debugged script
 repl.addTest('restart', [
-  /terminated/,
+  /terminated/
 ].concat(initialLines));
 
 repl.addTest('list(5)', linesWithBreakpoint);
diff --git a/test/debugger/test-debugger-repl-term.js b/test/debugger/test-debugger-repl-term.js
index 6872f6ce2f9c72..a03b3d90f8f094 100644
--- a/test/debugger/test-debugger-repl-term.js
+++ b/test/debugger/test-debugger-repl-term.js
@@ -19,7 +19,7 @@ addTest('n', [
 addTest('', [
   /debug>/,
   /break in .*:5/,
-  /3/, /4/, /5/, /6/, /7/,
+  /3/, /4/, /5/, /6/, /7/
 ]);
 
 // continue
@@ -33,12 +33,12 @@ addTest('c', [
 addTest('', [
   /debug>/,
   /break in .*:5/,
-  /3/, /4/, /5/, /6/, /7/,
+  /3/, /4/, /5/, /6/, /7/
 ]);
 
 // should repeat continue
 addTest('', [
   /debug>/,
   /break in .*:23/,
-  /21/, /22/, /23/, /24/, /25/,
+  /21/, /22/, /23/, /24/, /25/
 ]);
diff --git a/test/parallel/test-cluster-setup-master-cumulative.js b/test/parallel/test-cluster-setup-master-cumulative.js
index f0f98fbdbfb3a6..06543617714315 100644
--- a/test/parallel/test-cluster-setup-master-cumulative.js
+++ b/test/parallel/test-cluster-setup-master-cumulative.js
@@ -13,7 +13,7 @@ assert.deepEqual(cluster.settings, {
   args: process.argv.slice(2),
   exec: process.argv[1],
   execArgv: process.execArgv,
-  silent: false,
+  silent: false
 });
 console.log('ok sets defaults');
 
@@ -36,6 +36,6 @@ assert.deepEqual(cluster.settings, {
   args: ['foo', 'bar'],
   exec: 'overridden',
   execArgv: ['baz', 'bang'],
-  silent: false,
+  silent: false
 });
 console.log('ok preserves current settings');
diff --git a/test/parallel/test-cluster-setup-master-multiple.js b/test/parallel/test-cluster-setup-master-multiple.js
index 5ceff2bddfaf9d..e605e4c50f1c72 100644
--- a/test/parallel/test-cluster-setup-master-multiple.js
+++ b/test/parallel/test-cluster-setup-master-multiple.js
@@ -24,7 +24,7 @@ cluster.on('setup', function() {
 var execs = [
   'node-next',
   'node-next-2',
-  'node-next-3',
+  'node-next-3'
 ];
 
 process.on('exit', function assertTests() {
diff --git a/test/parallel/test-crypto-dh.js b/test/parallel/test-crypto-dh.js
index 68394dd9bcaff9..3897364b52e609 100644
--- a/test/parallel/test-crypto-dh.js
+++ b/test/parallel/test-crypto-dh.js
@@ -254,7 +254,7 @@ ecdh5.setPrivateKey(cafebabeKey, 'hex');
 [ // Some invalid private keys for the secp256k1 curve.
   '0000000000000000000000000000000000000000000000000000000000000000',
   'FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141',
-  'FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF',
+  'FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF'
 ].forEach(function(element, index, object) {
   assert.throws(function() {
     ecdh5.setPrivateKey(element, 'hex');
diff --git a/test/parallel/test-crypto-hmac.js b/test/parallel/test-crypto-hmac.js
index 600dd0dbb2c8bd..b7ed810a3dfae7 100644
--- a/test/parallel/test-crypto-hmac.js
+++ b/test/parallel/test-crypto-hmac.js
@@ -56,7 +56,7 @@ var wikipedia = [
           'b613679a0814d9ec772f95d778c35fc5ff1697c493715653c6c71214' +
           '4292c5ad'
     }
-  },
+  }
 ];
 
 for (let i = 0, l = wikipedia.length; i < l; i++) {
diff --git a/test/parallel/test-debug-signal-cluster.js b/test/parallel/test-debug-signal-cluster.js
index 7a950458b87271..f8364294ad3fb5 100644
--- a/test/parallel/test-debug-signal-cluster.js
+++ b/test/parallel/test-debug-signal-cluster.js
@@ -67,7 +67,7 @@ var expectedLines = [
   'Starting debugger agent.',
   'Debugger listening on port ' + (port + 1),
   'Starting debugger agent.',
-  'Debugger listening on port ' + (port + 2),
+  'Debugger listening on port ' + (port + 2)
 ];
 
 function assertOutputLines() {
diff --git a/test/parallel/test-dns.js b/test/parallel/test-dns.js
index d473ae8d952602..5457c0a46b77e3 100644
--- a/test/parallel/test-dns.js
+++ b/test/parallel/test-dns.js
@@ -11,7 +11,7 @@ function noop() {}
 
 var goog = [
   '8.8.8.8',
-  '8.8.4.4',
+  '8.8.4.4'
 ];
 assert.doesNotThrow(function() { dns.setServers(goog); });
 assert.deepEqual(dns.getServers(), goog);
@@ -20,7 +20,7 @@ assert.deepEqual(dns.getServers(), goog);
 
 var goog6 = [
   '2001:4860:4860::8888',
-  '2001:4860:4860::8844',
+  '2001:4860:4860::8844'
 ];
 assert.doesNotThrow(function() { dns.setServers(goog6); });
 assert.deepEqual(dns.getServers(), goog6);
@@ -31,11 +31,11 @@ assert.deepEqual(dns.getServers(), goog6);
 
 var ports = [
   '4.4.4.4:53',
-  '[2001:4860:4860::8888]:53',
+  '[2001:4860:4860::8888]:53'
 ];
 var portsExpected = [
   '4.4.4.4',
-  '2001:4860:4860::8888',
+  '2001:4860:4860::8888'
 ];
 dns.setServers(ports);
 assert.deepEqual(dns.getServers(), portsExpected);
diff --git a/test/parallel/test-domain-no-error-handler-abort-on-uncaught.js b/test/parallel/test-domain-no-error-handler-abort-on-uncaught.js
index 2ecb4ffb81796a..5bf2b755f32a8c 100644
--- a/test/parallel/test-domain-no-error-handler-abort-on-uncaught.js
+++ b/test/parallel/test-domain-no-error-handler-abort-on-uncaught.js
@@ -134,7 +134,7 @@ const tests = [
         });
       });
     });
-  },
+  }
 ];
 
 if (process.argv[2] === 'child') {
diff --git a/test/parallel/test-http-agent-error-on-idle.js b/test/parallel/test-http-agent-error-on-idle.js
index e3388ee0dcbd96..b4da30e77bf674 100644
--- a/test/parallel/test-http-agent-error-on-idle.js
+++ b/test/parallel/test-http-agent-error-on-idle.js
@@ -5,7 +5,7 @@ var http = require('http');
 var Agent = http.Agent;
 
 var agent = new Agent({
-  keepAlive: true,
+  keepAlive: true
 });
 
 var requestParams = {
diff --git a/test/parallel/test-http-client-timeout-agent.js b/test/parallel/test-http-client-timeout-agent.js
index 6892b38719fb1a..178f3f4e4fc19e 100644
--- a/test/parallel/test-http-client-timeout-agent.js
+++ b/test/parallel/test-http-client-timeout-agent.js
@@ -9,7 +9,7 @@ var requests_done = 0;
 var options = {
   method: 'GET',
   port: common.PORT,
-  host: '127.0.0.1',
+  host: '127.0.0.1'
 };
 
 //http.globalAgent.maxSockets = 15;
diff --git a/test/parallel/test-http-content-length.js b/test/parallel/test-http-content-length.js
index ec60396a24545d..fd1c1294b3f8f5 100644
--- a/test/parallel/test-http-content-length.js
+++ b/test/parallel/test-http-content-length.js
@@ -5,17 +5,17 @@ var http = require('http');
 
 var expectedHeadersMultipleWrites = {
   'connection': 'close',
-  'transfer-encoding': 'chunked',
+  'transfer-encoding': 'chunked'
 };
 
 var expectedHeadersEndWithData = {
   'connection': 'close',
-  'content-length': 'hello world'.length,
+  'content-length': 'hello world'.length
 };
 
 var expectedHeadersEndNoData = {
   'connection': 'close',
-  'content-length': '0',
+  'content-length': '0'
 };
 
 var receivedRequests = 0;
diff --git a/test/parallel/test-http-flush-headers.js b/test/parallel/test-http-flush-headers.js
index 5e91a4643a9019..9a253c346b1ddc 100644
--- a/test/parallel/test-http-flush-headers.js
+++ b/test/parallel/test-http-flush-headers.js
@@ -13,7 +13,7 @@ server.listen(common.PORT, '127.0.0.1', function() {
   const req = http.request({
     method: 'GET',
     host: '127.0.0.1',
-    port: common.PORT,
+    port: common.PORT
   });
   req.setHeader('foo', 'bar');
   req.flushHeaders();
diff --git a/test/parallel/test-http-flush-response-headers.js b/test/parallel/test-http-flush-response-headers.js
index 76e739741cb2db..1f1f669a01c3cc 100644
--- a/test/parallel/test-http-flush-response-headers.js
+++ b/test/parallel/test-http-flush-response-headers.js
@@ -14,7 +14,7 @@ server.listen(common.PORT, common.localhostIPv4, function() {
   var req = http.request({
     method: 'GET',
     host: common.localhostIPv4,
-    port: common.PORT,
+    port: common.PORT
   }, onResponse);
 
   req.end();
diff --git a/test/parallel/test-http-flush.js b/test/parallel/test-http-flush.js
index 8dc7ba7418dc88..55dcba4312ca6f 100644
--- a/test/parallel/test-http-flush.js
+++ b/test/parallel/test-http-flush.js
@@ -9,7 +9,7 @@ http.createServer(function(req, res) {
   var req = http.request({
     method: 'POST',
     host: '127.0.0.1',
-    port: common.PORT,
+    port: common.PORT
   });
   req.flush();  // Flush the request headers.
   req.flush();  // Should be idempotent.
diff --git a/test/parallel/test-http-server-multiheaders.js b/test/parallel/test-http-server-multiheaders.js
index 99d72988479928..61576f3dd7c6af 100644
--- a/test/parallel/test-http-server-multiheaders.js
+++ b/test/parallel/test-http-server-multiheaders.js
@@ -52,7 +52,7 @@ srv.listen(common.PORT, function() {
       ['sec-websocket-extensions', 'baz'],
       ['constructor', 'foo'],
       ['constructor', 'bar'],
-      ['constructor', 'baz'],
+      ['constructor', 'baz']
     ]
   });
 });
diff --git a/test/parallel/test-http-server-multiheaders2.js b/test/parallel/test-http-server-multiheaders2.js
index 438e8ba759e8ba..c5b349d966b6e0 100644
--- a/test/parallel/test-http-server-multiheaders2.js
+++ b/test/parallel/test-http-server-multiheaders2.js
@@ -28,7 +28,7 @@ var multipleAllowed = [
 
   // make sure that unspecified headers is treated as multiple
   'Some-Random-Header',
-  'X-Some-Random-Header',
+  'X-Some-Random-Header'
 ];
 
 var multipleForbidden = [
@@ -42,7 +42,7 @@ var multipleForbidden = [
   'If-Unmodified-Since',
   'From',
   'Location',
-  'Max-Forwards',
+  'Max-Forwards'
 
   // special case, tested differently
   //'Content-Length',
@@ -85,6 +85,6 @@ srv.listen(common.PORT, function() {
     host: 'localhost',
     port: common.PORT,
     path: '/',
-    headers: headers,
+    headers: headers
   });
 });
diff --git a/test/parallel/test-http-server-stale-close.js b/test/parallel/test-http-server-stale-close.js
index 349e869c1a4fbc..b1cfb045d00910 100644
--- a/test/parallel/test-http-server-stale-close.js
+++ b/test/parallel/test-http-server-stale-close.js
@@ -9,7 +9,7 @@ if (process.env.NODE_TEST_FORK) {
     headers: {'Content-Length': '42'},
     method: 'POST',
     host: '127.0.0.1',
-    port: common.PORT,
+    port: common.PORT
   }, process.exit);
   req.write('BAM');
   req.end();
diff --git a/test/parallel/test-listen-fd-cluster.js b/test/parallel/test-listen-fd-cluster.js
index c321f699d7a89d..d803cf958fcb10 100644
--- a/test/parallel/test-listen-fd-cluster.js
+++ b/test/parallel/test-listen-fd-cluster.js
@@ -41,7 +41,7 @@ test(function(parent) {
   http.get({
     server: 'localhost',
     port: PORT,
-    path: '/',
+    path: '/'
   }).on('response', function(res) {
     var s = '';
     res.on('data', function(c) {
diff --git a/test/parallel/test-listen-fd-detached-inherit.js b/test/parallel/test-listen-fd-detached-inherit.js
index 472b1e8ff939f0..0aaae672362779 100644
--- a/test/parallel/test-listen-fd-detached-inherit.js
+++ b/test/parallel/test-listen-fd-detached-inherit.js
@@ -39,7 +39,7 @@ function test() {
     http.get({
       server: 'localhost',
       port: PORT,
-      path: '/',
+      path: '/'
     }).on('response', function(res) {
       var s = '';
       res.on('data', function(c) {
diff --git a/test/parallel/test-listen-fd-detached.js b/test/parallel/test-listen-fd-detached.js
index 12c8c3ddc43fac..31e32b4776116f 100644
--- a/test/parallel/test-listen-fd-detached.js
+++ b/test/parallel/test-listen-fd-detached.js
@@ -39,7 +39,7 @@ function test() {
     http.get({
       server: 'localhost',
       port: PORT,
-      path: '/',
+      path: '/'
     }).on('response', function(res) {
       var s = '';
       res.on('data', function(c) {
diff --git a/test/parallel/test-listen-fd-server.js b/test/parallel/test-listen-fd-server.js
index 3e0fa521f75334..4870f7bcecc4a5 100644
--- a/test/parallel/test-listen-fd-server.js
+++ b/test/parallel/test-listen-fd-server.js
@@ -30,7 +30,7 @@ test(function(child) {
   http.get({
     server: 'localhost',
     port: PORT,
-    path: '/',
+    path: '/'
   }).on('response', function(res) {
     var s = '';
     res.on('data', function(c) {
diff --git a/test/parallel/test-net-localerror.js b/test/parallel/test-net-localerror.js
index ed7c9471e0397f..cac404fe916df3 100644
--- a/test/parallel/test-net-localerror.js
+++ b/test/parallel/test-net-localerror.js
@@ -6,13 +6,13 @@ var net = require('net');
 connect({
   host: 'localhost',
   port: common.PORT,
-  localPort: 'foobar',
+  localPort: 'foobar'
 }, 'localPort should be a number: foobar');
 
 connect({
   host: 'localhost',
   port: common.PORT,
-  localAddress: 'foobar',
+  localAddress: 'foobar'
 }, 'localAddress should be a valid IP: foobar');
 
 function connect(opts, msg) {
diff --git a/test/parallel/test-path-parse-format.js b/test/parallel/test-path-parse-format.js
index a28444cd3bca76..72c426a8cc7788 100644
--- a/test/parallel/test-path-parse-format.js
+++ b/test/parallel/test-path-parse-format.js
@@ -72,7 +72,7 @@ const errors = [
   {method: 'format', input: [true],
    message: /Parameter "pathObject" must be an object, not boolean/},
   {method: 'format', input: [1],
-   message: /Parameter "pathObject" must be an object, not number/},
+   message: /Parameter "pathObject" must be an object, not number/}
 ];
 
 checkParseFormat(path.win32, winPaths);
diff --git a/test/parallel/test-readline-keys.js b/test/parallel/test-readline-keys.js
index e026c0b583cd9e..c2ff8dc3233ddd 100644
--- a/test/parallel/test-readline-keys.js
+++ b/test/parallel/test-readline-keys.js
@@ -50,14 +50,14 @@ addTest('io.JS', [
   { name: 'o', sequence: 'o' },
   undefined, // emitted as `emit('keypress', '.', undefined)`
   { name: 'j', sequence: 'J', shift: true },
-  { name: 's', sequence: 'S', shift: true },
+  { name: 's', sequence: 'S', shift: true }
 ]);
 
 // named characters
 addTest('\n\r\t', [
   { name: 'enter', sequence: '\n' },
   { name: 'return', sequence: '\r' },
-  { name: 'tab', sequence: '\t' },
+  { name: 'tab', sequence: '\t' }
 ]);
 
 // space and backspace
@@ -67,14 +67,14 @@ addTest('\b\x7f\x1b\b\x1b\x7f \x1b ', [
   { name: 'backspace', sequence: '\x1b\b', meta: true },
   { name: 'backspace', sequence: '\x1b\x7f', meta: true },
   { name: 'space', sequence: ' ' },
-  { name: 'space', sequence: '\x1b ', meta: true },
+  { name: 'space', sequence: '\x1b ', meta: true }
 ]);
 
 // control keys
 addTest('\x01\x0b\x10', [
   { name: 'a', sequence: '\x01', ctrl: true },
   { name: 'k', sequence: '\x0b', ctrl: true },
-  { name: 'p', sequence: '\x10', ctrl: true },
+  { name: 'p', sequence: '\x10', ctrl: true }
 ]);
 
 // alt keys
@@ -82,19 +82,19 @@ addTest('a\x1baA\x1bA', [
   { name: 'a', sequence: 'a' },
   { name: 'a', sequence: '\x1ba', meta: true },
   { name: 'a', sequence: 'A', shift: true },
-  { name: 'a', sequence: '\x1bA', meta: true, shift: true },
+  { name: 'a', sequence: '\x1bA', meta: true, shift: true }
 ]);
 
 // xterm/gnome
 addTest('\x1bOA\x1bOB', [
   { name: 'up', sequence: '\x1bOA', code: 'OA' },
-  { name: 'down', sequence: '\x1bOB', code: 'OB' },
+  { name: 'down', sequence: '\x1bOB', code: 'OB' }
 ]);
 
 // old xterm shift-arrows
 addTest('\x1bO2A\x1bO2B', [
   { name: 'up', sequence: '\x1bO2A', code: 'OA', shift: true },
-  { name: 'down', sequence: '\x1bO2B', code: 'OB', shift: true },
+  { name: 'down', sequence: '\x1bO2B', code: 'OB', shift: true }
 ]);
 
 // gnome terminal
@@ -102,26 +102,26 @@ addTest('\x1b[A\x1b[B\x1b[2A\x1b[2B', [
   { name: 'up', sequence: '\x1b[A', code: '[A' },
   { name: 'down', sequence: '\x1b[B', code: '[B' },
   { name: 'up', sequence: '\x1b[2A', code: '[A', shift: true },
-  { name: 'down', sequence: '\x1b[2B', code: '[B', shift: true },
+  { name: 'down', sequence: '\x1b[2B', code: '[B', shift: true }
 ]);
 
 // rxvt
 addTest('\x1b[20~\x1b[2$\x1b[2^', [
   { name: 'f9', sequence: '\x1b[20~', code: '[20~' },
   { name: 'insert', sequence: '\x1b[2$', code: '[2$', shift: true },
-  { name: 'insert', sequence: '\x1b[2^', code: '[2^', ctrl: true },
+  { name: 'insert', sequence: '\x1b[2^', code: '[2^', ctrl: true }
 ]);
 
 // xterm + modifiers
 addTest('\x1b[20;5~\x1b[6;5^', [
   { name: 'f9', sequence: '\x1b[20;5~', code: '[20~', ctrl: true },
-  { name: 'pagedown', sequence: '\x1b[6;5^', code: '[6^', ctrl: true },
+  { name: 'pagedown', sequence: '\x1b[6;5^', code: '[6^', ctrl: true }
 ]);
 
 addTest('\x1b[H\x1b[5H\x1b[1;5H', [
   { name: 'home', sequence: '\x1b[H', code: '[H' },
   { name: 'home', sequence: '\x1b[5H', code: '[H', ctrl: true },
-  { name: 'home', sequence: '\x1b[1;5H', code: '[H', ctrl: true },
+  { name: 'home', sequence: '\x1b[1;5H', code: '[H', ctrl: true }
 ]);
 
 // escape sequences broken into multiple data chunks
@@ -129,7 +129,7 @@ addTest('\x1b[D\x1b[C\x1b[D\x1b[C'.split(''), [
   { name: 'left', sequence: '\x1b[D', code: '[D' },
   { name: 'right', sequence: '\x1b[C', code: '[C' },
   { name: 'left', sequence: '\x1b[D', code: '[D' },
-  { name: 'right', sequence: '\x1b[C', code: '[C' },
+  { name: 'right', sequence: '\x1b[C', code: '[C' }
 ]);
 
 // escape sequences mixed with regular ones
@@ -139,7 +139,7 @@ addTest('\x1b[DD\x1b[2DD\x1b[2^D', [
   { name: 'left', sequence: '\x1b[2D', code: '[D', shift: true },
   { name: 'd', sequence: 'D', shift: true },
   { name: 'insert', sequence: '\x1b[2^', code: '[2^', ctrl: true },
-  { name: 'd', sequence: 'D', shift: true },
+  { name: 'd', sequence: 'D', shift: true }
 ]);
 
 // color sequences
@@ -147,5 +147,5 @@ addTest('\x1b[31ma\x1b[39ma', [
   { name: 'undefined', sequence: '\x1b[31m', code: '[31m' },
   { name: 'a', sequence: 'a' },
   { name: 'undefined', sequence: '\x1b[39m', code: '[39m' },
-  { name: 'a', sequence: 'a' },
+  { name: 'a', sequence: 'a' }
 ]);
diff --git a/test/parallel/test-repl-setprompt.js b/test/parallel/test-repl-setprompt.js
index 2708a3e6af5448..dd97c56623410a 100644
--- a/test/parallel/test-repl-setprompt.js
+++ b/test/parallel/test-repl-setprompt.js
@@ -6,7 +6,7 @@ const os = require('os');
 
 var args = [
   '-e',
-  'var e = new (require("repl")).REPLServer("foo.. "); e.context.e = e;',
+  'var e = new (require("repl")).REPLServer("foo.. "); e.context.e = e;'
 ];
 
 var p = 'bar.. ';
diff --git a/test/parallel/test-repl.js b/test/parallel/test-repl.js
index d9e69cd6140b1f..ac10fce312654b 100644
--- a/test/parallel/test-repl.js
+++ b/test/parallel/test-repl.js
@@ -286,7 +286,7 @@ function error_test() {
     // REPL should get a normal require() function, not one that allows
     // access to internal modules without the --expose_internals flag.
     { client: client_unix, send: 'require("internal/repl")',
-      expect: /^Error: Cannot find module 'internal\/repl'/ },
+      expect: /^Error: Cannot find module 'internal\/repl'/ }
   ]);
 }
 
diff --git a/test/parallel/test-timers-active.js b/test/parallel/test-timers-active.js
index d8faa1f5a33483..fe98b1dd689641 100644
--- a/test/parallel/test-timers-active.js
+++ b/test/parallel/test-timers-active.js
@@ -23,7 +23,7 @@ legitTimers.forEach(function(legit) {
 // active() should not create a timer for these
 var bogusTimers = [
   { _idleTimeout: -1 },
-  { _idleTimeout: undefined },
+  { _idleTimeout: undefined }
 ];
 
 bogusTimers.forEach(function(bogus) {
diff --git a/test/parallel/test-tls-check-server-identity.js b/test/parallel/test-tls-check-server-identity.js
index 8d2155b94ea9af..c38ebfb813bcf3 100644
--- a/test/parallel/test-tls-check-server-identity.js
+++ b/test/parallel/test-tls-check-server-identity.js
@@ -198,7 +198,7 @@ var tests = [
     },
     error: 'Host: localhost. is not in the cert\'s altnames: ' +
            'DNS:a.com'
-  },
+  }
 ];
 
 tests.forEach(function(test, i) {
diff --git a/test/parallel/test-tls-connect-no-host.js b/test/parallel/test-tls-connect-no-host.js
index a6ead6ea6dceae..dfa5eaa6486c7b 100644
--- a/test/parallel/test-tls-connect-no-host.js
+++ b/test/parallel/test-tls-connect-no-host.js
@@ -24,7 +24,7 @@ tls.createServer({
 
 var socket = tls.connect({
   port: common.PORT,
-  ca: cert,
+  ca: cert
   // No host set here. 'localhost' is the default,
   // but tls.checkServerIdentity() breaks before the fix with:
   // Error: Hostname/IP doesn't match certificate's altnames:
diff --git a/test/parallel/test-tls-interleave.js b/test/parallel/test-tls-interleave.js
index fd93a05e593107..3b80833bff31eb 100644
--- a/test/parallel/test-tls-interleave.js
+++ b/test/parallel/test-tls-interleave.js
@@ -19,7 +19,7 @@ var options = { key: fs.readFileSync(dir + '/test_key.pem'),
 var writes = [
   'some server data',
   'and a separate packet',
-  'and one more',
+  'and one more'
 ];
 var receivedWrites = 0;
 
diff --git a/test/parallel/test-tls-npn-server-client.js b/test/parallel/test-tls-npn-server-client.js
index d74d65c8b03bd7..579b7b467ff46c 100644
--- a/test/parallel/test-tls-npn-server-client.js
+++ b/test/parallel/test-tls-npn-server-client.js
@@ -32,7 +32,7 @@ var serverOptions = {
     cb(null, tls.createSecureContext({
       key: loadPEM('agent2-key'),
       cert: loadPEM('agent2-cert'),
-      crl: loadPEM('ca2-crl'),
+      crl: loadPEM('ca2-crl')
     }));
   },
   NPNProtocols: ['a', 'b', 'c']
diff --git a/test/parallel/test-url.js b/test/parallel/test-url.js
index 95bde7b861e668..1f2e133e08c49d 100644
--- a/test/parallel/test-url.js
+++ b/test/parallel/test-url.js
@@ -707,7 +707,7 @@ var parseTests = {
     hostname: '-lovemonsterz.tumblr.com',
     href: 'http://-lovemonsterz.tumblr.com/rss',
     pathname: '/rss',
-    path: '/rss',
+    path: '/rss'
   },
 
   'http://-lovemonsterz.tumblr.com:80/rss': {
@@ -718,7 +718,7 @@ var parseTests = {
     hostname: '-lovemonsterz.tumblr.com',
     href: 'http://-lovemonsterz.tumblr.com:80/rss',
     pathname: '/rss',
-    path: '/rss',
+    path: '/rss'
   },
 
   'http://user:pass@-lovemonsterz.tumblr.com/rss': {
@@ -729,7 +729,7 @@ var parseTests = {
     hostname: '-lovemonsterz.tumblr.com',
     href: 'http://user:pass@-lovemonsterz.tumblr.com/rss',
     pathname: '/rss',
-    path: '/rss',
+    path: '/rss'
   },
 
   'http://user:pass@-lovemonsterz.tumblr.com:80/rss': {
@@ -741,7 +741,7 @@ var parseTests = {
     hostname: '-lovemonsterz.tumblr.com',
     href: 'http://user:pass@-lovemonsterz.tumblr.com:80/rss',
     pathname: '/rss',
-    path: '/rss',
+    path: '/rss'
   },
 
   'http://_jabber._tcp.google.com/test': {
@@ -751,7 +751,7 @@ var parseTests = {
     hostname: '_jabber._tcp.google.com',
     href: 'http://_jabber._tcp.google.com/test',
     pathname: '/test',
-    path: '/test',
+    path: '/test'
   },
 
   'http://user:pass@_jabber._tcp.google.com/test': {
@@ -762,7 +762,7 @@ var parseTests = {
     hostname: '_jabber._tcp.google.com',
     href: 'http://user:pass@_jabber._tcp.google.com/test',
     pathname: '/test',
-    path: '/test',
+    path: '/test'
   },
 
   'http://_jabber._tcp.google.com:80/test': {
@@ -773,7 +773,7 @@ var parseTests = {
     hostname: '_jabber._tcp.google.com',
     href: 'http://_jabber._tcp.google.com:80/test',
     pathname: '/test',
-    path: '/test',
+    path: '/test'
   },
 
   'http://user:pass@_jabber._tcp.google.com:80/test': {
@@ -785,7 +785,7 @@ var parseTests = {
     hostname: '_jabber._tcp.google.com',
     href: 'http://user:pass@_jabber._tcp.google.com:80/test',
     pathname: '/test',
-    path: '/test',
+    path: '/test'
   },
 
   'http://x:1/\' <>"`/{}|\\^~`/': {
@@ -1117,7 +1117,7 @@ var formatTests = {
     hostname: 'ex.com',
     hash: '#frag',
     search: '?abc=the#1?&foo=bar',
-    pathname: '/foo?100%m#r',
+    pathname: '/foo?100%m#r'
   },
 
   // `?` and `#` in search only
@@ -1127,7 +1127,7 @@ var formatTests = {
     hostname: 'ex.com',
     hash: '#frag',
     search: '?abc=the#1?&foo=bar',
-    pathname: '/fooA100%mBr',
+    pathname: '/fooA100%mBr'
   }
 };
 for (const u in formatTests) {
diff --git a/test/parallel/test-util-inspect.js b/test/parallel/test-util-inspect.js
index 57833d65f5bb95..f20123fdafaf35 100644
--- a/test/parallel/test-util-inspect.js
+++ b/test/parallel/test-util-inspect.js
@@ -361,7 +361,7 @@ var w = {
   '\\': 1,
   '\\\\': 2,
   '\\\\\\': 3,
-  '\\\\\\\\': 4,
+  '\\\\\\\\': 4
 };
 
 var y = ['a', 'b', 'c'];
diff --git a/test/parallel/test-vm-basic.js b/test/parallel/test-vm-basic.js
index f08c8383b84a18..ca14789241e119 100644
--- a/test/parallel/test-vm-basic.js
+++ b/test/parallel/test-vm-basic.js
@@ -11,7 +11,7 @@ var result = vm.runInNewContext(
 );
 assert.deepEqual(sandbox, {
   foo: 'bar',
-  typeofProcess: 'undefined',
+  typeofProcess: 'undefined'
 });
 assert.strictEqual(result, 'function');
 
diff --git a/test/parallel/test-zlib-convenience-methods.js b/test/parallel/test-zlib-convenience-methods.js
index 70c102efd2862c..cc410a847227bb 100644
--- a/test/parallel/test-zlib-convenience-methods.js
+++ b/test/parallel/test-zlib-convenience-methods.js
@@ -10,14 +10,14 @@ var hadRun = 0;
 var expect = 'blahblahblahblahblahblah';
 var opts = {
   level: 9,
-  chunkSize: 1024,
+  chunkSize: 1024
 };
 
 [
   ['gzip', 'gunzip'],
   ['gzip', 'unzip'],
   ['deflate', 'inflate'],
-  ['deflateRaw', 'inflateRaw'],
+  ['deflateRaw', 'inflateRaw']
 ].forEach(function(method) {
 
   zlib[method[0]](expect, opts, function(err, result) {
diff --git a/test/pummel/test-keep-alive.js b/test/pummel/test-keep-alive.js
index 46190555b27263..d275d167665fcc 100644
--- a/test/pummel/test-keep-alive.js
+++ b/test/pummel/test-keep-alive.js
@@ -30,7 +30,7 @@ function runAb(opts, callback) {
   var args = [
     '-c', opts.concurrent || 100,
     '-t', opts.threads || 2,
-    '-d', opts.duration || '10s',
+    '-d', opts.duration || '10s'
   ];
 
   if (!opts.keepalive) {
diff --git a/test/sequential/test-net-localport.js b/test/sequential/test-net-localport.js
index 09b6627c79ce47..7fd509c71b7862 100644
--- a/test/sequential/test-net-localport.js
+++ b/test/sequential/test-net-localport.js
@@ -14,7 +14,7 @@ var server = net.createServer(function(socket) {
   var client = net.connect({
     host: '127.0.0.1',
     port: common.PORT,
-    localPort: common.PORT + 1,
+    localPort: common.PORT + 1
   }).on('connect', function() {
     assert.strictEqual(client.localPort, common.PORT + 1);
   });