diff --git a/src/inspector_socket.cc b/src/inspector_socket.cc
index 7fd691ddd871ae..161e93c0afce18 100644
--- a/src/inspector_socket.cc
+++ b/src/inspector_socket.cc
@@ -554,10 +554,11 @@ class HttpHandler : public ProtocolHandler {
   static int OnMessageComplete(parser_t* parser) {
     // Event needs to be fired after the parser is done.
     HttpHandler* handler = From(parser);
-    handler->events_.push_back(
-        HttpEvent(handler->path_, parser->upgrade, parser->method == HTTP_GET,
-                  handler->HeaderValue("Sec-WebSocket-Key"),
-                  handler->HeaderValue("Host")));
+    handler->events_.emplace_back(handler->path_,
+                                  parser->upgrade,
+                                  parser->method == HTTP_GET,
+                                  handler->HeaderValue("Sec-WebSocket-Key"),
+                                  handler->HeaderValue("Host"));
     handler->path_ = "";
     handler->parsing_value_ = false;
     handler->headers_.clear();
diff --git a/src/node_file.cc b/src/node_file.cc
index 95a239ee52bf96..063293e788c735 100644
--- a/src/node_file.cc
+++ b/src/node_file.cc
@@ -661,7 +661,7 @@ void AfterScanDirWithTypes(uv_fs_t* req) {
       return req_wrap->Reject(error);
 
     name_v.push_back(filename.ToLocalChecked());
-    type_v.push_back(Integer::New(isolate, ent.type));
+    type_v.emplace_back(Integer::New(isolate, ent.type));
   }
 
   Local<Array> result = Array::New(isolate, 2);
@@ -1508,7 +1508,7 @@ static void ReadDir(const FunctionCallbackInfo<Value>& args) {
       name_v.push_back(filename.ToLocalChecked());
 
       if (with_types) {
-        type_v.push_back(Integer::New(isolate, ent.type));
+        type_v.emplace_back(Integer::New(isolate, ent.type));
       }
     }
 
diff --git a/src/node_messaging.cc b/src/node_messaging.cc
index a76c64d74351b1..7fcbde67e0d5eb 100644
--- a/src/node_messaging.cc
+++ b/src/node_messaging.cc
@@ -387,9 +387,8 @@ Maybe<bool> Message::Serialize(Environment* env,
     env->isolate_data()->node_allocator()->UnregisterPointer(
         contents.Data(), contents.ByteLength());
 
-    array_buffer_contents_.push_back(
-        MallocedBuffer<char> { static_cast<char*>(contents.Data()),
-                               contents.ByteLength() });
+    array_buffer_contents_.emplace_back(MallocedBuffer<char>{
+        static_cast<char*>(contents.Data()), contents.ByteLength()});
   }
 
   delegate.Finish();
diff --git a/src/node_native_module.cc b/src/node_native_module.cc
index 33df8c0aa8e590..41f1588c4da792 100644
--- a/src/node_native_module.cc
+++ b/src/node_native_module.cc
@@ -92,7 +92,7 @@ void NativeModuleLoader::ModuleIdsGetter(
   ids.reserve(source_.size());
 
   for (auto const& x : source_) {
-    ids.push_back(OneByteString(isolate, x.first.c_str(), x.first.size()));
+    ids.emplace_back(OneByteString(isolate, x.first.c_str(), x.first.size()));
   }
 
   info.GetReturnValue().Set(Array::New(isolate, ids.data(), ids.size()));
diff --git a/src/node_process_methods.cc b/src/node_process_methods.cc
index 3cf2670a88bac2..d2ba00b89b0883 100644
--- a/src/node_process_methods.cc
+++ b/src/node_process_methods.cc
@@ -255,7 +255,7 @@ static void GetActiveRequests(const FunctionCallbackInfo<Value>& args) {
     AsyncWrap* w = req_wrap->GetAsyncWrap();
     if (w->persistent().IsEmpty())
       continue;
-    request_v.push_back(w->GetOwner());
+    request_v.emplace_back(w->GetOwner());
   }
 
   args.GetReturnValue().Set(
@@ -271,7 +271,7 @@ void GetActiveHandles(const FunctionCallbackInfo<Value>& args) {
   for (auto w : *env->handle_wrap_queue()) {
     if (!HandleWrap::HasRef(w))
       continue;
-    handle_v.push_back(w->GetOwner());
+    handle_v.emplace_back(w->GetOwner());
   }
   args.GetReturnValue().Set(
       Array::New(env->isolate(), handle_v.data(), handle_v.size()));
diff --git a/src/node_url.cc b/src/node_url.cc
index 5e241b76f12c7c..e5e9eff74ce928 100644
--- a/src/node_url.cc
+++ b/src/node_url.cc
@@ -2053,7 +2053,7 @@ void URL::Parse(const char* input,
             break;
           default:
             if (url->path.size() == 0)
-              url->path.push_back("");
+              url->path.emplace_back("");
             if (url->path.size() > 0 && ch != kEOL)
               AppendOrEscape(&url->path[0], ch, C0_CONTROL_ENCODE_SET);
         }