doc,lib,test: capitalize comment sentences

This activates the eslint capitalize comment rule for comments
above 50 characters.

PR-URL: https://github.com/nodejs/node/pull/24996
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

29 files changed, 96 insertions, 96 deletions

diff --git a/lib/_http_client.js b/lib/_http_client.js
index c90d9b9633..46605dce0c 100644
--- a/lib/_http_client.js
+++ b/lib/_http_client.js
@@ -555,7 +555,7 @@ function parserOnIncomingClient(res, shouldKeepAlive) {
   req.res = res;
   res.req = req;
 
-  // add our listener first, so that we guarantee socket cleanup
+  // Add our listener first, so that we guarantee socket cleanup
   res.on('end', responseOnEnd);
   req.on('prefinish', requestOnPrefinish);
   var handled = req.emit('response', res);
diff --git a/lib/_http_common.js b/lib/_http_common.js
index 9188e9c7ca..7ecef8b83d 100644
--- a/lib/_http_common.js
+++ b/lib/_http_common.js
@@ -116,11 +116,11 @@ function parserOnHeadersComplete(versionMajor, versionMinor, headers, method,
 function parserOnBody(b, start, len) {
   const stream = this.incoming;
 
-  // if the stream has already been removed, then drop it.
+  // If the stream has already been removed, then drop it.
   if (stream === null)
     return;
 
-  // pretend this was the result of a stream._read call.
+  // Pretend this was the result of a stream._read call.
   if (len > 0 && !stream._dumped) {
     var slice = b.slice(start, start + len);
     var ret = stream.push(slice);
diff --git a/lib/_http_incoming.js b/lib/_http_incoming.js
index bf2fee6932..1e0c42f7bd 100644
--- a/lib/_http_incoming.js
+++ b/lib/_http_incoming.js
@@ -67,7 +67,7 @@ function IncomingMessage(socket) {
   this.client = socket;
 
   this._consuming = false;
-  // flag for when we decide that this message cannot possibly be
+  // Flag for when we decide that this message cannot possibly be
   // read by the user, so there's no point continuing to handle it.
   this._dumped = false;
 }
diff --git a/lib/_http_server.js b/lib/_http_server.js
index 7e33ef1734..6aad3584c2 100644
--- a/lib/_http_server.js
+++ b/lib/_http_server.js
@@ -574,7 +574,7 @@ function resOnFinish(req, res, socket, state, server) {
 
   state.incoming.shift();
 
-  // if the user never called req.read(), and didn't pipe() or
+  // If the user never called req.read(), and didn't pipe() or
   // .resume() or .on('data'), then we call req._dump() so that the
   // bytes will be pulled off the wire.
   if (!req._consuming && !req._readableState.resumeScheduled)
diff --git a/lib/_stream_duplex.js b/lib/_stream_duplex.js
index 82cc23a38c..79c91cc362 100644
--- a/lib/_stream_duplex.js
+++ b/lib/_stream_duplex.js
@@ -67,7 +67,7 @@ function Duplex(options) {
 }
 
 Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -77,7 +77,7 @@ Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
 });
 
 Object.defineProperty(Duplex.prototype, 'writableBuffer', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -87,7 +87,7 @@ Object.defineProperty(Duplex.prototype, 'writableBuffer', {
 });
 
 Object.defineProperty(Duplex.prototype, 'writableLength', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -112,7 +112,7 @@ function onEndNT(self) {
 }
 
 Object.defineProperty(Duplex.prototype, 'destroyed', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index fbab236203..8db8848ba1 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -79,7 +79,7 @@ function ReadableState(options, stream, isDuplex) {
   if (typeof isDuplex !== 'boolean')
     isDuplex = stream instanceof Stream.Duplex;
 
-  // object stream flag. Used to make read(n) ignore n and to
+  // Object stream flag. Used to make read(n) ignore n and to
   // make all the buffer merging and length checks go away
   this.objectMode = !!options.objectMode;
 
@@ -109,7 +109,7 @@ function ReadableState(options, stream, isDuplex) {
   // not happen before the first read call.
   this.sync = true;
 
-  // whenever we return null, then we set a flag to say
+  // Whenever we return null, then we set a flag to say
   // that we're awaiting a 'readable' event emission.
   this.needReadable = false;
   this.emittedReadable = false;
@@ -172,7 +172,7 @@ function Readable(options) {
 }
 
 Object.defineProperty(Readable.prototype, 'destroyed', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -323,7 +323,7 @@ Readable.prototype.setEncoding = function(enc) {
   if (!StringDecoder)
     StringDecoder = require('string_decoder').StringDecoder;
   this._readableState.decoder = new StringDecoder(enc);
-  // if setEncoding(null), decoder.encoding equals utf8
+  // If setEncoding(null), decoder.encoding equals utf8
   this._readableState.encoding = this._readableState.decoder.encoding;
   return this;
 };
@@ -384,7 +384,7 @@ Readable.prototype.read = function(n) {
   if (n !== 0)
     state.emittedReadable = false;
 
-  // if we're doing read(0) to trigger a readable event, but we
+  // If we're doing read(0) to trigger a readable event, but we
   // already have a bunch of data in the buffer, then just trigger
   // the 'readable' event and move on.
   if (n === 0 &&
@@ -403,7 +403,7 @@ Readable.prototype.read = function(n) {
 
   n = howMuchToRead(n, state);
 
-  // if we've ended, and we're now clear, then finish it up.
+  // If we've ended, and we're now clear, then finish it up.
   if (n === 0 && state.ended) {
     if (state.length === 0)
       endReadable(this);
@@ -506,12 +506,12 @@ function onEofChunk(stream, state) {
   state.ended = true;
 
   if (state.sync) {
-    // if we are sync, wait until next tick to emit the data.
+    // If we are sync, wait until next tick to emit the data.
     // Otherwise we risk emitting data in the flow()
     // the readable code triggers during a read() call
     emitReadable(stream);
   } else {
-    // emit 'readable' now to make sure it gets picked up.
+    // Emit 'readable' now to make sure it gets picked up.
     state.needReadable = false;
     if (!state.emittedReadable) {
       state.emittedReadable = true;
@@ -656,7 +656,7 @@ Readable.prototype.pipe = function(dest, pipeOpts) {
     dest.end();
   }
 
-  // when the dest drains, it reduces the awaitDrain counter
+  // When the dest drains, it reduces the awaitDrain counter
   // on the source.  This would be more elegant with a .once()
   // handler in flow(), but adding and removing repeatedly is
   // too slow.
@@ -678,7 +678,7 @@ Readable.prototype.pipe = function(dest, pipeOpts) {
 
     cleanedUp = true;
 
-    // if the reader is waiting for a drain event from this
+    // If the reader is waiting for a drain event from this
     // specific writer, then it would cause it to never start
     // flowing again.
     // So, if this is awaiting a drain, then we just call it now.
@@ -708,8 +708,8 @@ Readable.prototype.pipe = function(dest, pipeOpts) {
     }
   }
 
-  // if the dest has an error, then stop piping into it.
-  // however, don't suppress the throwing behavior for this.
+  // If the dest has an error, then stop piping into it.
+  // However, don't suppress the throwing behavior for this.
   function onerror(er) {
     debug('onerror', er);
     unpipe();
@@ -828,7 +828,7 @@ Readable.prototype.on = function(ev, fn) {
   const state = this._readableState;
 
   if (ev === 'data') {
-    // update readableListening so that resume() may be a no-op
+    // Update readableListening so that resume() may be a no-op
     // a few lines down. This is needed to support once('readable').
     state.readableListening = this.listenerCount('readable') > 0;
 
@@ -958,7 +958,7 @@ function flow(stream) {
   while (state.flowing && stream.read() !== null);
 }
 
-// wrap an old-style stream as the async data source.
+// Wrap an old-style stream as the async data source.
 // This is *not* part of the readable stream interface.
 // It is an ugly unfortunate mess of history.
 Readable.prototype.wrap = function(stream) {
@@ -1011,7 +1011,7 @@ Readable.prototype.wrap = function(stream) {
     stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
   }
 
-  // when we try to consume some more bytes, simply unpause the
+  // When we try to consume some more bytes, simply unpause the
   // underlying stream.
   this._read = (n) => {
     debug('wrapped _read', n);
@@ -1034,7 +1034,7 @@ Readable.prototype[Symbol.asyncIterator] = function() {
 };
 
 Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -1044,7 +1044,7 @@ Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
 });
 
 Object.defineProperty(Readable.prototype, 'readableBuffer', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -1054,7 +1054,7 @@ Object.defineProperty(Readable.prototype, 'readableBuffer', {
 });
 
 Object.defineProperty(Readable.prototype, 'readableFlowing', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -1072,7 +1072,7 @@ Object.defineProperty(Readable.prototype, 'readableFlowing', {
 Readable._fromList = fromList;
 
 Object.defineProperty(Readable.prototype, 'readableLength', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
diff --git a/lib/_stream_transform.js b/lib/_stream_transform.js
index d7fcb13395..9d8da0c547 100644
--- a/lib/_stream_transform.js
+++ b/lib/_stream_transform.js
@@ -88,7 +88,7 @@ function afterTransform(er, data) {
   ts.writechunk = null;
   ts.writecb = null;
 
-  if (data != null) // single equals check for both `null` and `undefined`
+  if (data != null) // Single equals check for both `null` and `undefined`
     this.push(data);
 
   cb(er);
@@ -189,7 +189,7 @@ Transform.prototype._read = function(n) {
     ts.transforming = true;
     this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
   } else {
-    // mark that we need a transform, so that any data that comes in
+    // Mark that we need a transform, so that any data that comes in
     // will get processed, now that we've asked for it.
     ts.needTransform = true;
   }
@@ -207,7 +207,7 @@ function done(stream, er, data) {
   if (er)
     return stream.emit('error', er);
 
-  if (data != null) // single equals check for both `null` and `undefined`
+  if (data != null) // Single equals check for both `null` and `undefined`
     stream.push(data);
 
   // TODO(BridgeAR): Write a test for these two error cases
diff --git a/lib/_stream_writable.js b/lib/_stream_writable.js
index b317c208fb..570c4c4d0a 100644
--- a/lib/_stream_writable.js
+++ b/lib/_stream_writable.js
@@ -62,7 +62,7 @@ function WritableState(options, stream, isDuplex) {
   if (typeof isDuplex !== 'boolean')
     isDuplex = stream instanceof Stream.Duplex;
 
-  // object stream flag to indicate whether or not this stream
+  // Object stream flag to indicate whether or not this stream
   // contains buffers or objects.
   this.objectMode = !!options.objectMode;
 
@@ -101,15 +101,15 @@ function WritableState(options, stream, isDuplex) {
   // Everything else in the universe uses 'utf8', though.
   this.defaultEncoding = options.defaultEncoding || 'utf8';
 
-  // not an actual buffer we keep track of, but a measurement
+  // Not an actual buffer we keep track of, but a measurement
   // of how much we're waiting to get pushed to some underlying
   // socket or file.
   this.length = 0;
 
-  // a flag to see when we're in the middle of a write.
+  // A flag to see when we're in the middle of a write.
   this.writing = false;
 
-  // when true all writes will be buffered until .uncork() call
+  // When true all writes will be buffered until .uncork() call
   this.corked = 0;
 
   // A flag to be able to tell if the onwrite cb is called immediately,
@@ -129,7 +129,7 @@ function WritableState(options, stream, isDuplex) {
   // The callback that the user supplies to write(chunk,encoding,cb)
   this.writecb = null;
 
-  // the amount that is being written when _write is called.
+  // The amount that is being written when _write is called.
   this.writelen = 0;
 
   this.bufferedRequest = null;
@@ -331,7 +331,7 @@ Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
 };
 
 Object.defineProperty(Writable.prototype, 'writableBuffer', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -350,7 +350,7 @@ function decodeChunk(state, chunk, encoding) {
 }
 
 Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -359,7 +359,7 @@ Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
   }
 });
 
-// if we're already writing something, then just put this
+// If we're already writing something, then just put this
 // in the queue, and wait our turn.  Otherwise, call _write
 // If we return false, then we need a drain event, so set that flag.
 function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
@@ -420,7 +420,7 @@ function onwriteError(stream, state, sync, er, cb) {
   --state.pendingcb;
 
   if (sync) {
-    // defer the callback if we are being called synchronously
+    // Defer the callback if we are being called synchronously
     // to avoid piling up things on the stack
     process.nextTick(cb, er);
     // this can emit finish, and it will always happen
@@ -496,7 +496,7 @@ function onwriteDrain(stream, state) {
   }
 }
 
-// if there's something in the buffer waiting, then process it
+// If there's something in the buffer waiting, then process it
 function clearBuffer(stream, state) {
   state.bufferProcessing = true;
   var entry = state.bufferedRequest;
@@ -597,7 +597,7 @@ Writable.prototype.end = function(chunk, encoding, cb) {
 };
 
 Object.defineProperty(Writable.prototype, 'writableLength', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
@@ -686,7 +686,7 @@ function onCorkedFinish(corkReq, state, err) {
 }
 
 Object.defineProperty(Writable.prototype, 'destroyed', {
-  // making it explicit this property is not enumerable
+  // Making it explicit this property is not enumerable
   // because otherwise some prototype manipulation in
   // userland will fail
   enumerable: false,
diff --git a/lib/async_hooks.js b/lib/async_hooks.js
index 7d16070741..7ba5f40f18 100644
--- a/lib/async_hooks.js
+++ b/lib/async_hooks.js
@@ -157,7 +157,7 @@ class AsyncResource {
 
     this[async_id_symbol] = newAsyncId();
     this[trigger_async_id_symbol] = triggerAsyncId;
-    // this prop name (destroyed) has to be synchronized with C++
+    // This prop name (destroyed) has to be synchronized with C++
     this[destroyedSymbol] = { destroyed: false };
 
     emitInit(
diff --git a/lib/dgram.js b/lib/dgram.js
index 08b6a4771a..4a9352b770 100644
--- a/lib/dgram.js
+++ b/lib/dgram.js
@@ -515,7 +515,7 @@ function doSend(ex, self, ip, list, address, port, callback) {
                               !!callback);
 
   if (err && callback) {
-    // don't emit as error, dgram_legacy.js compatibility
+    // Don't emit as error, dgram_legacy.js compatibility
     const ex = exceptionWithHostPort(err, 'send', address, port);
     process.nextTick(callback, ex);
   }
diff --git a/lib/domain.js b/lib/domain.js
index 5db92e8432..da116e60b3 100644
--- a/lib/domain.js
+++ b/lib/domain.js
@@ -52,7 +52,7 @@ const pairing = new Map();
 const asyncHook = createHook({
   init(asyncId, type, triggerAsyncId, resource) {
     if (process.domain !== null && process.domain !== undefined) {
-      // if this operation is created while in a domain, let's mark it
+      // If this operation is created while in a domain, let's mark it
       pairing.set(asyncId, process.domain);
       resource.domain = process.domain;
     }
@@ -180,7 +180,7 @@ exports.create = exports.createDomain = function createDomain() {
   return new Domain();
 };
 
-// the active domain is always the one that we're currently in.
+// The active domain is always the one that we're currently in.
 exports.active = null;
 Domain.prototype.members = undefined;
 
@@ -219,7 +219,7 @@ Domain.prototype._errorHandler = function(er) {
       }
     }
   } else {
-    // wrap this in a try/catch so we don't get infinite throwing
+    // Wrap this in a try/catch so we don't get infinite throwing
     try {
       // One of three things will happen here.
       //
@@ -259,7 +259,7 @@ Domain.prototype._errorHandler = function(er) {
 
 
 Domain.prototype.enter = function() {
-  // note that this might be a no-op, but we still need
+  // Note that this might be a no-op, but we still need
   // to push it onto the stack so that we can pop it later.
   exports.active = process.domain = this;
   stack.push(this);
@@ -268,7 +268,7 @@ Domain.prototype.enter = function() {
 
 
 Domain.prototype.exit = function() {
-  // don't do anything if this domain is not on the stack.
+  // Don't do anything if this domain is not on the stack.
   var index = stack.lastIndexOf(this);
   if (index === -1) return;
 
diff --git a/lib/events.js b/lib/events.js
index 3fce38f881..6c5b699faa 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -380,7 +380,7 @@ EventEmitter.prototype.removeAllListeners =
         return this;
       }
 
-      // emit removeListener for all listeners on all events
+      // Emit removeListener for all listeners on all events
       if (arguments.length === 0) {
         var keys = Object.keys(events);
         var key;
diff --git a/lib/fs.js b/lib/fs.js
index 873e93d9cd..f992166d54 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -1269,7 +1269,7 @@ function appendFile(path, data, options, callback) {
   // Don't make changes directly on options object
   options = copyObject(options);
 
-  // force append behavior when using a supplied file descriptor
+  // Force append behavior when using a supplied file descriptor
   if (!options.flag || isFd(path))
     options.flag = 'a';
 
@@ -1282,7 +1282,7 @@ function appendFileSync(path, data, options) {
   // Don't make changes directly on options object
   options = copyObject(options);
 
-  // force append behavior when using a supplied file descriptor
+  // Force append behavior when using a supplied file descriptor
   if (!options.flag || isFd(path))
     options.flag = 'a';
 
@@ -1450,11 +1450,11 @@ function realpathSync(p, options) {
 
   // current character position in p
   let pos;
-  // the partial path so far, including a trailing slash if any
+  // The partial path so far, including a trailing slash if any
   let current;
   // The partial path without a trailing slash (except when pointing at a root)
   let base;
-  // the partial path scanned in the previous round, with slash
+  // The partial path scanned in the previous round, with slash
   let previous;
 
   // Skip over roots
@@ -1590,11 +1590,11 @@ function realpath(p, options, callback) {
 
   // current character position in p
   let pos;
-  // the partial path so far, including a trailing slash if any
+  // The partial path so far, including a trailing slash if any
   let current;
   // The partial path without a trailing slash (except when pointing at a root)
   let base;
-  // the partial path scanned in the previous round, with slash
+  // The partial path scanned in the previous round, with slash
   let previous;
 
   current = base = splitRoot(p);
diff --git a/lib/internal/child_process.js b/lib/internal/child_process.js
index b8743c0a51..195cc156fc 100644
--- a/lib/internal/child_process.js
+++ b/lib/internal/child_process.js
@@ -105,7 +105,7 @@ const handleConversion = {
         var firstTime = !this.channel.sockets.send[message.key];
         var socketList = getSocketList('send', this, message.key);
 
-        // the server should no longer expose a .connection property
+        // The server should no longer expose a .connection property
         // and when asked to close it should query the socket status from
         // the workers
         if (firstTime) socket.server._setupWorker(socketList);
@@ -254,7 +254,7 @@ function ChildProcess() {
       this.emit('exit', this.exitCode, this.signalCode);
     }
 
-    // if any of the stdio streams have not been touched,
+    // If any of the stdio streams have not been touched,
     // then pull all the data through so that it can get the
     // eof and emit a 'close' event.
     // Do it on nextTick so that the user has one last chance
diff --git a/lib/internal/console/constructor.js b/lib/internal/console/constructor.js
index da54dd11a7..c2cf1fc48c 100644
--- a/lib/internal/console/constructor.js
+++ b/lib/internal/console/constructor.js
@@ -100,7 +100,7 @@ function Console(options /* or: stdout, stderr, ignoreErrors = true */) {
     optionsMap.set(this, inspectOptions);
   }
 
-  // bind the prototype functions to this Console instance
+  // Bind the prototype functions to this Console instance
   var keys = Object.keys(Console.prototype);
   for (var v = 0; v < keys.length; v++) {
     var k = keys[v];
diff --git a/lib/internal/fs/streams.js b/lib/internal/fs/streams.js
index 059f203597..98d256f696 100644
--- a/lib/internal/fs/streams.js
+++ b/lib/internal/fs/streams.js
@@ -40,17 +40,17 @@ function ReadStream(path, options) {
   if (!(this instanceof ReadStream))
     return new ReadStream(path, options);
 
-  // a little bit bigger buffer and water marks by default
+  // A little bit bigger buffer and water marks by default
   options = copyObject(getOptions(options, {}));
   if (options.highWaterMark === undefined)
     options.highWaterMark = 64 * 1024;
 
-  // for backwards compat do not emit close on destroy.
+  // For backwards compat do not emit close on destroy.
   options.emitClose = false;
 
   Readable.call(this, options);
 
-  // path will be ignored when fd is specified, so it can be falsy
+  // Path will be ignored when fd is specified, so it can be falsy
   this.path = toPathIfFileURL(path);
   this.fd = options.fd === undefined ? null : options.fd;
   this.flags = options.flags === undefined ? 'r' : options.flags;
@@ -197,7 +197,7 @@ ReadStream.prototype._read = function(n) {
     }
   });
 
-  // move the pool positions, and internal position for reading.
+  // Move the pool positions, and internal position for reading.
   if (this.pos !== undefined)
     this.pos += toRead;
   pool.used += toRead;
@@ -238,12 +238,12 @@ function WriteStream(path, options) {
 
   options = copyObject(getOptions(options, {}));
 
-  // for backwards compat do not emit close on destroy.
+  // For backwards compat do not emit close on destroy.
   options.emitClose = false;
 
   Writable.call(this, options);
 
-  // path will be ignored when fd is specified, so it can be falsy
+  // Path will be ignored when fd is specified, so it can be falsy
   this.path = toPathIfFileURL(path);
   this.fd = options.fd === undefined ? null : options.fd;
   this.flags = options.flags === undefined ? 'w' : options.flags;
diff --git a/lib/internal/http2/compat.js b/lib/internal/http2/compat.js
index 1783a48ada..927504621d 100644
--- a/lib/internal/http2/compat.js
+++ b/lib/internal/http2/compat.js
@@ -440,7 +440,7 @@ class Http2ServerResponse extends Stream {
   }
 
   get socket() {
-    // this is compatible with http1 which removes socket reference
+    // This is compatible with http1 which removes socket reference
     // only from ServerResponse but not IncomingMessage
     if (this[kState].closed)
       return;
diff --git a/lib/internal/http2/core.js b/lib/internal/http2/core.js
index e27d529068..082bd552c2 100644
--- a/lib/internal/http2/core.js
+++ b/lib/internal/http2/core.js
@@ -564,7 +564,7 @@ function requestOnConnect(headers, options) {
   if (options.waitForTrailers)
     streamOptions |= STREAM_OPTION_GET_TRAILERS;
 
-  // ret will be either the reserved stream ID (if positive)
+  // `ret` will be either the reserved stream ID (if positive)
   // or an error code (if negative)
   const ret = session[kHandle].request(headers,
                                        streamOptions,
@@ -2082,7 +2082,7 @@ function startFilePipe(self, fd, offset, length) {
   pipe.onunpipe = onFileUnpipe;
   pipe.start();
 
-  // exact length of the file doesn't matter here, since the
+  // Exact length of the file doesn't matter here, since the
   // stream is closing anyway - just use 1 to signify that
   // a write does exist
   trackWriteState(self, 1);
diff --git a/lib/internal/modules/cjs/loader.js b/lib/internal/modules/cjs/loader.js
index ee4fffa64a..b70171cc5d 100644
--- a/lib/internal/modules/cjs/loader.js
+++ b/lib/internal/modules/cjs/loader.js
@@ -219,7 +219,7 @@ function tryExtensions(p, exts, isMain) {
   return false;
 }
 
-// find the longest (possibly multi-dot) extension registered in
+// Find the longest (possibly multi-dot) extension registered in
 // Module._extensions
 function findLongestRegisteredExtension(filename) {
   const name = path.basename(filename);
@@ -593,7 +593,7 @@ Module._resolveFilename = function(request, parent, isMain, options) {
     paths = Module._resolveLookupPaths(request, parent, true);
   }
 
-  // look up the filename first, since that's the cache key.
+  // Look up the filename first, since that's the cache key.
   var filename = Module._findPath(request, paths, isMain);
   if (!filename) {
     // eslint-disable-next-line no-restricted-syntax
@@ -692,7 +692,7 @@ Module.prototype._compile = function(content, filename) {
   var inspectorWrapper = null;
   if (process._breakFirstLine && process._eval == null) {
     if (!resolvedArgv) {
-      // we enter the repl if we're not given a filename argument.
+      // We enter the repl if we're not given a filename argument.
       if (process.argv[1]) {
         resolvedArgv = Module._resolveFilename(process.argv[1], null, false);
       } else {
diff --git a/lib/internal/modules/esm/loader.js b/lib/internal/modules/esm/loader.js
index 820b593446..a1a1621909 100644
--- a/lib/internal/modules/esm/loader.js
+++ b/lib/internal/modules/esm/loader.js
@@ -25,11 +25,11 @@ const debug = require('util').debuglog('esm');
  * the main module and everything in its dependency graph. */
 class Loader {
   constructor() {
-    // methods which translate input code or other information
+    // Methods which translate input code or other information
     // into es modules
     this.translators = translators;
 
-    // registry of loaded modules, akin to `require.cache`
+    // Registry of loaded modules, akin to `require.cache`
     this.moduleMap = new ModuleMap();
 
     // The resolver has the signature
diff --git a/lib/internal/process/next_tick.js b/lib/internal/process/next_tick.js
index 046449d658..cb0274367a 100644
--- a/lib/internal/process/next_tick.js
+++ b/lib/internal/process/next_tick.js
@@ -81,7 +81,7 @@ function setupNextTick(_setupNextTick, _setupPromises) {
 
   class TickObject {
     constructor(callback, args, triggerAsyncId) {
-      // this must be set to null first to avoid function tracking
+      // This must be set to null first to avoid function tracking
       // on the hidden class, revisit in V8 versions after 6.2
       this.callback = null;
       this.callback = callback;
diff --git a/lib/internal/process/stdio.js b/lib/internal/process/stdio.js
index 224af28b0f..5e9ff6b260 100644
--- a/lib/internal/process/stdio.js
+++ b/lib/internal/process/stdio.js
@@ -92,8 +92,8 @@ function getMainThreadStdio() {
     // For supporting legacy API we put the FD here.
     stdin.fd = fd;
 
-    // stdin starts out life in a paused state, but node doesn't
-    // know yet.  Explicitly to readStop() it to put it in the
+    // `stdin` starts out life in a paused state, but node doesn't
+    // know yet. Explicitly to readStop() it to put it in the
     // not-reading state.
     if (stdin._handle && stdin._handle.readStop) {
       stdin._handle.reading = false;
diff --git a/lib/internal/streams/destroy.js b/lib/internal/streams/destroy.js
index de6bcf9cdb..0c652be9dd 100644
--- a/lib/internal/streams/destroy.js
+++ b/lib/internal/streams/destroy.js
@@ -1,6 +1,6 @@
 'use strict';
 
-// undocumented cb() API, needed for core, not for public API
+// Undocumented cb() API, needed for core, not for public API
 function destroy(err, cb) {
   const readableDestroyed = this._readableState &&
     this._readableState.destroyed;
diff --git a/lib/internal/timers.js b/lib/internal/timers.js
index fc9979e4b5..3eb7192e2b 100644
--- a/lib/internal/timers.js
+++ b/lib/internal/timers.js
@@ -69,7 +69,7 @@ function Timeout(callback, after, args, isRepeat) {
   this._idlePrev = this;
   this._idleNext = this;
   this._idleStart = null;
-  // this must be set to null first to avoid function tracking
+  // This must be set to null first to avoid function tracking
   // on the hidden class, revisit in V8 versions after 6.2
   this._onTimeout = null;
   this._onTimeout = callback;
diff --git a/lib/net.js b/lib/net.js
index 990fd7b5a1..011ccb6a53 100644
--- a/lib/net.js
+++ b/lib/net.js
@@ -311,7 +311,7 @@ function Socket(options) {
   // handle strings directly
   this._writableState.decodeStrings = false;
 
-  // if we have a handle, then start the flow of data into the
+  // If we have a handle, then start the flow of data into the
   // buffer.  if not, then this will happen when we connect
   if (this._handle && options.readable !== false) {
     if (options.pauseOnCreate) {
@@ -343,7 +343,7 @@ Socket.prototype._unrefTimer = function _unrefTimer() {
 };
 
 
-// the user has called .end(), and all the bytes have been
+// The user has called .end(), and all the bytes have been
 // sent out to the other side.
 Socket.prototype._final = function(cb) {
   // If still connecting - defer handling `_final` until 'connect' will happen
@@ -453,7 +453,7 @@ Socket.prototype.setNoDelay = function(enable) {
     return this;
   }
 
-  // backwards compatibility: assume true when `enable` is omitted
+  // Backwards compatibility: assume true when `enable` is omitted
   if (this._handle.setNoDelay)
     this._handle.setNoDelay(enable === undefined ? true : !!enable);
 
@@ -755,7 +755,7 @@ protoGetter('bytesWritten', function bytesWritten() {
   });
 
   if (Array.isArray(data)) {
-    // was a writev, iterate over chunks to get total length
+    // Was a writev, iterate over chunks to get total length
     for (var i = 0; i < data.length; i++) {
       const chunk = data[i];
 
@@ -1147,7 +1147,7 @@ function toNumber(x) { return (x = Number(x)) >= 0 ? x : false; }
 // Returns handle if it can be created, or error code if it can't
 function createServerHandle(address, port, addressType, fd, flags) {
   var err = 0;
-  // assign handle in listen, and clean up if bind or listen fails
+  // Assign handle in listen, and clean up if bind or listen fails
   var handle;
 
   var isTCP = false;
diff --git a/lib/readline.js b/lib/readline.js
index c35bd1899b..9c7caff60a 100644
--- a/lib/readline.js
+++ b/lib/readline.js
@@ -134,7 +134,7 @@ function Interface(input, output, completer, terminal) {
     throw new ERR_INVALID_OPT_VALUE.RangeError('historySize', historySize);
   }
 
-  // backwards compat; check the isTTY prop of the output stream
+  // Backwards compat; check the isTTY prop of the output stream
   //  when `terminal` was not specified
   if (terminal === undefined && !(output === null || output === undefined)) {
     terminal = !!output.isTTY;
@@ -441,7 +441,7 @@ Interface.prototype._normalWrite = function(b) {
   if (newPartContainsEnding) {
     this._sawReturnAt = string.endsWith('\r') ? Date.now() : 0;
 
-    // got one or more newlines; process into "line" events
+    // Got one or more newlines; process into "line" events
     var lines = string.split(lineEnding);
     // Either '' or (conceivably) the unfinished portion of the next line
     string = lines.pop();
@@ -449,7 +449,7 @@ Interface.prototype._normalWrite = function(b) {
     for (var n = 0; n < lines.length; n++)
       this._onLine(lines[n]);
   } else if (string) {
-    // no newlines this time, save what we have for next time
+    // No newlines this time, save what we have for next time
     this._line_buffer = string;
   }
 };
@@ -869,7 +869,7 @@ Interface.prototype._ttyWrite = function(s, key) {
                 self.pause();
                 self.emit('SIGCONT');
               }
-              // explicitly re-enable "raw mode" and move the cursor to
+              // Explicitly re-enable "raw mode" and move the cursor to
               // the correct position.
               // See https://github.com/joyent/node/issues/3295.
               self._setRawMode(true);
@@ -1078,7 +1078,7 @@ function emitKeypressEvents(stream, iface) {
               );
             }
           } catch (err) {
-            // if the generator throws (it could happen in the `keypress`
+            // If the generator throws (it could happen in the `keypress`
             // event), we need to restart it.
             stream[ESCAPE_DECODER] = emitKeys(stream);
             stream[ESCAPE_DECODER].next();
diff --git a/lib/repl.js b/lib/repl.js
index dd675fc435..2d618d3d38 100644
--- a/lib/repl.js
+++ b/lib/repl.js
@@ -753,7 +753,7 @@ exports.REPLServer = REPLServer;
 exports.REPL_MODE_SLOPPY = Symbol('repl-sloppy');
 exports.REPL_MODE_STRICT = Symbol('repl-strict');
 
-// prompt is a string to print on each line for the prompt,
+// Prompt is a string to print on each line for the prompt,
 // source is a stream to use for I/O, defaulting to stdin/stdout.
 exports.start = function(prompt,
                          source,
@@ -1359,7 +1359,7 @@ function _memory(cmd) {
       }());
     }
 
-    // it is possible to determine a syntax error at this point.
+    // It is possible to determine a syntax error at this point.
     // if the REPL still has a bufferedCommand and
     // self.lines.level.length === 0
     // TODO? keep a log of level so that any syntax breaking lines can
diff --git a/lib/timers.js b/lib/timers.js
index 4f2fef449d..0937e73c4a 100644
--- a/lib/timers.js
+++ b/lib/timers.js
@@ -654,7 +654,7 @@ const Immediate = class Immediate {
   constructor(callback, args) {
     this._idleNext = null;
     this._idlePrev = null;
-    // this must be set to null first to avoid function tracking
+    // This must be set to null first to avoid function tracking
     // on the hidden class, revisit in V8 versions after 6.2
     this._onImmediate = null;
     this._onImmediate = callback;
diff --git a/lib/url.js b/lib/url.js
index c34eee638c..9755cf430a 100644
--- a/lib/url.js
+++ b/lib/url.js
@@ -78,7 +78,7 @@ const hostPattern = /^\/\/[^@/]+@[^@/]+/;
 const simplePathPattern = /^(\/\/?(?!\/)[^?\s]*)(\?[^\s]*)?$/;
 
 const hostnameMaxLen = 255;
-// protocols that can allow "unsafe" and "unwise" chars.
+// Protocols that can allow "unsafe" and "unwise" chars.
 const unsafeProtocol = new SafeSet([
   'javascript',
   'javascript:'
@@ -434,7 +434,7 @@ Url.prototype.parse = function parse(url, parseQueryString, slashesDenoteHost) {
       this.query = querystring.parse(this.query);
     }
   } else if (parseQueryString) {
-    // no query string, but parseQueryString still requested
+    // No query string, but parseQueryString still requested
     this.search = null;
     this.query = Object.create(null);
   }
@@ -863,7 +863,7 @@ Url.prototype.resolveObject = function resolveObject(relative) {
     return result;
   }
 
-  // if a url ENDs in . or .., then it must get a trailing slash.
+  // If a url ENDs in . or .., then it must get a trailing slash.
   // however, if it ends in anything else non-slashy,
   // then it must NOT get a trailing slash.
   var last = srcPath.slice(-1)[0];
@@ -871,7 +871,7 @@ Url.prototype.resolveObject = function resolveObject(relative) {
     (result.host || relative.host || srcPath.length > 1) &&
     (last === '.' || last === '..') || last === '');
 
-  // strip single dots, resolve double dots to parent dir
+  // Strip single dots, resolve double dots to parent dir
   // if the path tries to go above the root, `up` ends up > 0
   var up = 0;
   for (var i = srcPath.length - 1; i >= 0; i--) {