diff --git a/lib/path.js b/lib/path.js
index 576b12f1e6db71..63055d339a525a 100644
--- a/lib/path.js
+++ b/lib/path.js
@@ -73,9 +73,7 @@ if (isWindows) {
         resolvedAbsolute = false;
 
     for (var i = arguments.length; i >= -1; i--) {
-      var path = (i >= 0)
-          ? arguments[i]
-          : process.cwd();
+      var path = (i >= 0) ? arguments[i] : process.cwd();
 
       // Skip empty and invalid entries
       if (typeof path !== 'string' || !path) {
@@ -202,12 +200,12 @@ if (isWindows) {
 
     function trim(arr) {
       var start = 0;
-      for(;start < arr.length; start++) {
+      for (; start < arr.length; start++) {
         if (arr[start] !== '') break;
       }
 
       var end = arr.length - 1;
-      for(;end >= 0; end--) {
+      for (; end >= 0; end--) {
         if (arr[end] !== '') break;
       }
 
@@ -223,7 +221,7 @@ if (isWindows) {
 
     var length = Math.min(lowerFromParts.length, lowerToParts.length);
     var samePartsLength = length;
-    for(var i = 0; i < length; i++) {
+    for (var i = 0; i < length; i++) {
       if (lowerFromParts[i] !== lowerToParts[i]) {
         samePartsLength = i;
         break;
@@ -235,7 +233,7 @@ if (isWindows) {
     }
 
     var outputParts = [];
-    for(var i = samePartsLength; i < lowerFromParts.length; i++) {
+    for (var i = samePartsLength; i < lowerFromParts.length; i++) {
       outputParts.push('..');
     }
 
@@ -258,9 +256,7 @@ if (isWindows) {
         resolvedAbsolute = false;
 
     for (var i = arguments.length; i >= -1 && !resolvedAbsolute; i--) {
-      var path = (i >= 0)
-          ? arguments[i]
-          : process.cwd();
+      var path = (i >= 0) ? arguments[i] : process.cwd();
 
       // Skip empty and invalid entries
       if (typeof path !== 'string' || !path) {
@@ -321,12 +317,12 @@ if (isWindows) {
 
     function trim(arr) {
       var start = 0;
-      for(;start < arr.length; start++) {
+      for (; start < arr.length; start++) {
         if (arr[start] !== '') break;
       }
 
       var end = arr.length - 1;
-      for(;end >= 0; end--) {
+      for (; end >= 0; end--) {
         if (arr[end] !== '') break;
       }
 
@@ -339,7 +335,7 @@ if (isWindows) {
 
     var length = Math.min(fromParts.length, toParts.length);
     var samePartsLength = length;
-    for(var i = 0; i < length; i++) {
+    for (var i = 0; i < length; i++) {
       if (fromParts[i] !== toParts[i]) {
         samePartsLength = i;
         break;
@@ -347,7 +343,7 @@ if (isWindows) {
     }
 
     var outputParts = [];
-    for(var i = samePartsLength; i < fromParts.length; i++) {
+    for (var i = samePartsLength; i < fromParts.length; i++) {
       outputParts.push('..');
     }
 
diff --git a/lib/readline.js b/lib/readline.js
index abefa4b1038579..e03b3d276e1273 100644
--- a/lib/readline.js
+++ b/lib/readline.js
@@ -335,7 +335,7 @@ Interface.prototype._wordLeft = function() {
     this.cursor -= match[0].length;
     this._refreshLine();
   }
-}
+};
 
 
 Interface.prototype._wordRight = function() {
@@ -345,7 +345,7 @@ Interface.prototype._wordRight = function() {
     this.cursor += match[0].length;
     this._refreshLine();
   }
-}
+};
 
 
 Interface.prototype._deleteLeft = function() {
@@ -375,7 +375,7 @@ Interface.prototype._deleteWordLeft = function() {
     this.cursor = leading.length;
     this._refreshLine();
   }
-}
+};
 
 
 Interface.prototype._deleteWordRight = function() {
@@ -386,20 +386,20 @@ Interface.prototype._deleteWordRight = function() {
                 trailing.slice(match[0].length);
     this._refreshLine();
   }
-}
+};
 
 
 Interface.prototype._deleteLineLeft = function() {
   this.line = this.line.slice(this.cursor);
   this.cursor = 0;
   this._refreshLine();
-}
+};
 
 
 Interface.prototype._deleteLineRight = function() {
   this.line = this.line.slice(0, this.cursor);
   this._refreshLine();
-}
+};
 
 
 Interface.prototype._line = function() {
@@ -454,11 +454,11 @@ Interface.prototype._ttyWrite = function(s, key) {
   if (key.ctrl && key.shift) {
     /* Control and shift pressed */
     switch (key.name) {
-      case "backspace":
+      case 'backspace':
         this._deleteLineLeft();
         break;
 
-      case "delete":
+      case 'delete':
         this._deleteLineRight();
         break;
     }
diff --git a/lib/repl.js b/lib/repl.js
index 09775bf3bdd910..68fc1169918704 100644
--- a/lib/repl.js
+++ b/lib/repl.js
@@ -104,8 +104,8 @@ function REPLServer(prompt, stream) {
   var sawSIGINT = false;
   rli.on('SIGINT', function() {
     if (sawSIGINT) {
-       rli.close();
-       process.exit();
+      rli.close();
+      process.exit();
     }
     var bareInt = false;
     if (!(self.bufferedCommand && self.bufferedCommand.length > 0) &&
@@ -298,7 +298,7 @@ REPLServer.prototype.complete = function(line) {
     var filter = match[1];
     var dir, files, f, name, base, ext, abs, subfiles, s;
     group = [];
-    var paths = module.paths.concat(require("module").globalPaths);
+    var paths = module.paths.concat(require('module').globalPaths);
     for (i = 0; i < paths.length; i++) {
       dir = path.resolve(paths[i], subdir);
       try {
diff --git a/lib/tls.js b/lib/tls.js
index e83ae4ef9367fe..938d9033e13da7 100644
--- a/lib/tls.js
+++ b/lib/tls.js
@@ -69,7 +69,7 @@ function convertNPNProtocols(NPNProtocols, out) {
   if (Buffer.isBuffer(NPNProtocols)) {
     out.NPNProtocols = NPNProtocols;
   }
-};
+}
 
 // Base class of both CleartextStream and EncryptedStream
 function CryptoStream(pair) {
@@ -379,7 +379,7 @@ CryptoStream.prototype._pull = function() {
         this.pair.encrypted._destroyAfterPush = true;
       }
       this.pair.cycle();
-      this._done()
+      this._done();
       return;
     }
 
@@ -514,9 +514,8 @@ function SecurePair(credentials, isServer, requestCert, rejectUnauthorized,
   this._requestCert = requestCert ? true : false;
 
   this.ssl = new Connection(this.credentials.context,
-                             this._isServer ? true : false,
-                             this._requestCert,
-                             this._rejectUnauthorized);
+      this._isServer ? true : false, this._requestCert,
+      this._rejectUnauthorized);
 
   if (NPN_ENABLED && NPNProtocols) {
     this.ssl.setNPNProtocols(NPNProtocols);
@@ -593,28 +592,28 @@ SecurePair.prototype.cycle = function(depth) {
 
   if (!this.cycleEncryptedPullLock) {
     this.cycleEncryptedPullLock = true;
-    debug("encrypted._pull");
+    debug('encrypted._pull');
     this.encrypted._pull();
     this.cycleEncryptedPullLock = false;
   }
 
   if (!this.cycleCleartextPullLock) {
     this.cycleCleartextPullLock = true;
-    debug("cleartext._pull");
+    debug('cleartext._pull');
     this.cleartext._pull();
     this.cycleCleartextPullLock = false;
   }
 
   if (!this.cycleCleartextPushLock) {
     this.cycleCleartextPushLock = true;
-    debug("cleartext._push");
+    debug('cleartext._push');
     this.cleartext._push();
     this.cycleCleartextPushLock = false;
   }
 
   if (!this.cycleEncryptedPushLock) {
     this.cycleEncryptedPushLock = true;
-    debug("encrypted._push");
+    debug('encrypted._push');
     this.encrypted._push();
     this.cycleEncryptedPushLock = false;
   }
diff --git a/lib/tty_win32.js b/lib/tty_win32.js
index 7a5c9597de221b..7f88fa648377e7 100644
--- a/lib/tty_win32.js
+++ b/lib/tty_win32.js
@@ -120,7 +120,7 @@ WriteStream.prototype.isTTY = true;
 
 WriteStream.prototype.write = function(data, encoding) {
   if (!this.writable) {
-    this.emit("error", new Error('stream not writable'));
+    this.emit('error', new Error('stream not writable'));
     return false;
   }
 
diff --git a/lib/url.js b/lib/url.js
index 4f7611da9602d1..18cddad4276196 100644
--- a/lib/url.js
+++ b/lib/url.js
@@ -231,7 +231,7 @@ function urlParse(url, parseQueryString, slashesDenoteHost) {
     for (var i = 0; i < domainArray.length; ++i) {
       var s = domainArray[i];
       newOut.push(s.match(/[^A-Za-z0-9_-]/) ?
-        'xn--' + punycode.encode(s) : s);
+          'xn--' + punycode.encode(s) : s);
     }
     out.hostname = newOut.join('.');