lib: prefer logical assignment

Author: avivkeller

benchmark/_http-benchmarkers.js

@@ -110,7 +110,7 @@ class TestDoubleBenchmarker {
   }
 
   create(options) {
-    process.env.duration = process.env.duration || options.duration || 5;
+    process.env.duration ||= options.duration || 5;
 
     const scheme = options.scheme || 'http';
     const env = {

benchmark/common.js

@@ -113,8 +113,7 @@ class Benchmark {
       }
       const [, key, value] = match;
       if (configs[key] !== undefined) {
-        if (!cliOptions[key])
-          cliOptions[key] = [];
+        cliOptions[key] ||= [];
         cliOptions[key].push(
           // Infer the type from the config object and parse accordingly
           typeof configs[key][0] === 'number' ? +value : value,
@@ -177,10 +176,9 @@ class Benchmark {
 
   http(options, cb) {
     const http_options = { ...options };
-    http_options.benchmarker = http_options.benchmarker ||
-                               this.config.benchmarker ||
-                               this.extra_options.benchmarker ||
-                               http_benchmarkers.default_http_benchmarker;
+    http_options.benchmarker ||= this.config.benchmarker ||
+                                 this.extra_options.benchmarker ||
+                                 http_benchmarkers.default_http_benchmarker;
     http_benchmarkers.run(
       http_options, (error, code, used_benchmarker, result, elapsed) => {
         if (cb) {

benchmark/es/defaultparams-bench.js

@@ -9,8 +9,8 @@ const bench = common.createBenchmark(main, {
 });
 
 function oldStyleDefaults(x, y) {
-  x = x || 1;
-  y = y || 2;
+  x ||= 1;
+  y ||= 2;
   assert.strictEqual(x, 1);
   assert.strictEqual(y, 2);
 }

benchmark/perf_hooks/resourcetiming.js

@@ -21,18 +21,12 @@ function createTimingInfo({
   finalConnectionTimingInfo = null,
 }) {
   if (finalConnectionTimingInfo !== null) {
-    finalConnectionTimingInfo.domainLookupStartTime =
-        finalConnectionTimingInfo.domainLookupStartTime || 0;
-    finalConnectionTimingInfo.domainLookupEndTime =
-        finalConnectionTimingInfo.domainLookupEndTime || 0;
-    finalConnectionTimingInfo.connectionStartTime =
-        finalConnectionTimingInfo.connectionStartTime || 0;
-    finalConnectionTimingInfo.connectionEndTime =
-        finalConnectionTimingInfo.connectionEndTime || 0;
-    finalConnectionTimingInfo.secureConnectionStartTime =
-        finalConnectionTimingInfo.secureConnectionStartTime || 0;
-    finalConnectionTimingInfo.ALPNNegotiatedProtocol =
-        finalConnectionTimingInfo.ALPNNegotiatedProtocol || [];
+    finalConnectionTimingInfo.domainLookupStartTime ||= 0;
+    finalConnectionTimingInfo.domainLookupEndTime ||= 0;
+    finalConnectionTimingInfo.connectionStartTime ||= 0;
+    finalConnectionTimingInfo.connectionEndTime ||= 0;
+    finalConnectionTimingInfo.secureConnectionStartTime ||= 0;
+    finalConnectionTimingInfo.ALPNNegotiatedProtocol ||= [];
   }
   return {
     startTime,

benchmark/zlib/deflate.js

@@ -10,7 +10,7 @@ const bench = common.createBenchmark(main, {
 
 function main({ n, method, inputLen }) {
   // Default method value for testing.
-  method = method || 'deflate';
+  method ||= 'deflate';
   const chunk = Buffer.alloc(inputLen, 'a');
 
   switch (method) {

benchmark/zlib/inflate.js

@@ -10,7 +10,7 @@ const bench = common.createBenchmark(main, {
 
 function main({ n, method, inputLen }) {
   // Default method value for tests.
-  method = method || 'inflate';
+  method ||= 'inflate';
   const chunk = zlib.deflateSync(Buffer.alloc(inputLen, 'a'));
 
   let i = 0;

eslint.config.mjs

@@ -144,6 +144,7 @@ export default [
           ignorePattern: '.*',
         },
       }],
+      'logical-assignment-operators': ['error', 'always', { enforceForIfStatements: true }],
       'default-case-last': 'error',
       'dot-notation': 'error',
       'eqeqeq': ['error', 'smart'],

lib/_http_agent.js

@@ -246,9 +246,7 @@ Agent.prototype.addRequest = function addRequest(req, options, port/* legacy */,
   normalizeServerName(options, req);
 
   const name = this.getName(options);
-  if (!this.sockets[name]) {
-    this.sockets[name] = [];
-  }
+  this.sockets[name] ||= [];
 
   const freeSockets = this.freeSockets[name];
   let socket;
@@ -284,9 +282,7 @@ Agent.prototype.addRequest = function addRequest(req, options, port/* legacy */,
   } else {
     debug('wait for socket');
     // We are over limit so we'll add it to the queue.
-    if (!this.requests[name]) {
-      this.requests[name] = [];
-    }
+    this.requests[name] ||= [];
 
     // Used to create sockets for pending requests from different origin
     req[kRequestOptions] = options;
@@ -313,9 +309,7 @@ Agent.prototype.createSocket = function createSocket(req, options, cb) {
   const oncreate = once((err, s) => {
     if (err)
       return cb(err);
-    if (!this.sockets[name]) {
-      this.sockets[name] = [];
-    }
+    this.sockets[name] ||= [];
     this.sockets[name].push(s);
     this.totalSocketCount++;
     debug('sockets', name, this.sockets[name].length, this.totalSocketCount);

lib/_http_client.js

@@ -347,8 +347,8 @@ function ClientRequest(input, options, cb) {
       opts = { ...optsWithoutSignal };
       if (opts.socketPath) {
         opts.path = opts.socketPath;
-      } else if (opts.path) {
-        opts.path = undefined;
+      } else {
+        opts.path &&= undefined;
       }
     }
     if (typeof opts.createConnection === 'function') {

lib/_http_server.js

@@ -357,8 +357,7 @@ function writeHead(statusCode, reason, obj) {
     this.statusMessage = reason;
   } else {
     // writeHead(statusCode[, headers])
-    if (!this.statusMessage)
-      this.statusMessage = STATUS_CODES[statusCode] || 'unknown';
+    this.statusMessage ||= STATUS_CODES[statusCode] || 'unknown';
     obj ??= reason;
   }
   this.statusCode = statusCode;
@@ -510,9 +509,7 @@ function storeHTTPOptions(options) {
 
 function setupConnectionsTracking() {
   // Start connection handling
-  if (!this[kConnections]) {
-    this[kConnections] = new ConnectionsList();
-  }
+  this[kConnections] ||= new ConnectionsList();
 
   if (this[kConnectionsCheckingInterval]) {
     clearInterval(this[kConnectionsCheckingInterval]);
@@ -923,8 +920,7 @@ function onParserExecuteCommon(server, socket, parser, state, ret, d) {
     const req = parser.incoming;
     debug('SERVER upgrade or connect', req.method);
 
-    if (!d)
-      d = parser.getCurrentBuffer();
+    d ||= parser.getCurrentBuffer();
 
     socket.removeListener('data', state.onData);
     socket.removeListener('end', state.onEnd);
@@ -962,7 +958,7 @@ function onParserExecuteCommon(server, socket, parser, state, ret, d) {
 }
 
 function clearIncoming(req) {
-  req = req || this;
+  req ||= this;
   const parser = req.socket && req.socket.parser;
   // Reset the .incoming property so that the request object can be gc'ed.
   if (parser && parser.incoming === req) {