WMXPY's automated bug factoryhttps://blog.mengw.io/en-UShttps://blog.mengw.io/en-US/posts/hello-world/https://blog.mengw.io/en-US/posts/hello-world/Re-launching this blog on Astro. Same person, fewer adjectives.Wed, 20 May 2026 00:00:00 GMTmetahttps://blog.mengw.io/en-US/posts/rethink-document-writing/https://blog.mengw.io/en-US/posts/rethink-document-writing/What an open-source project's docs need to provide beyond what a generator can output.Tue, 27 Oct 2020 00:00:00 GMTdocumentationwritingopen-sourcehttps://blog.mengw.io/en-US/posts/angular-dotnet-notes/https://blog.mengw.io/en-US/posts/angular-dotnet-notes/C# threading, JS vs C# GC, TypeScript type tricks, and the Angular lifecycle and DI.Wed, 10 Apr 2019 00:00:00 GMTcsharpangulartypescriptnoteshttps://blog.mengw.io/en-US/posts/generators-and-coroutines/https://blog.mengw.io/en-US/posts/generators-and-coroutines/The stackless coroutine that powers JS generators, and how async/await desugars to a generator + executor.Tue, 09 Apr 2019 00:00:00 GMTjavascriptgeneratorsasynchttps://blog.mengw.io/en-US/posts/redis-single-thread/https://blog.mengw.io/en-US/posts/redis-single-thread/Why Redis is single-threaded and still hits six-figure QPS.Mon, 01 Apr 2019 00:00:00 GMTredisperformancehttps://blog.mengw.io/en-US/posts/http-end-of-story/https://blog.mengw.io/en-US/posts/http-end-of-story/HTTP's blank-line terminator, the chunked transfer-encoding shape, and how both relate to a filesystem's EOF.Sun, 31 Mar 2019 00:00:00 GMThttpnetworkinghttps://blog.mengw.io/en-US/posts/typescript-function-argument-types/https://blog.mengw.io/en-US/posts/typescript-function-argument-types/Pulling parameters and return types out of a function with `infer`, and where it stops working on unions.Tue, 26 Mar 2019 00:00:00 GMTtypescripttype-systemhttps://blog.mengw.io/en-US/posts/idempotence-and-side-effects/https://blog.mengw.io/en-US/posts/idempotence-and-side-effects/What happens when a user pounds the submit button — designing for idempotent APIs.Fri, 22 Mar 2019 00:00:00 GMTapi-designhttpresthttps://blog.mengw.io/en-US/posts/python-ml-cv-notes/https://blog.mengw.io/en-US/posts/python-ml-cv-notes/Common interview-style questions across Python, ML, and CV.Thu, 21 Mar 2019 00:00:00 GMTpythonmachine-learningcomputer-visionnoteshttps://blog.mengw.io/en-US/posts/binary-search-tree/https://blog.mengw.io/en-US/posts/binary-search-tree/BST properties, operation costs, and the worst-case degeneration into a linked list.Tue, 19 Mar 2019 00:00:00 GMTdata-structurestreeshttps://blog.mengw.io/en-US/posts/hashmap-collisions/https://blog.mengw.io/en-US/posts/hashmap-collisions/The linked-list shape Java's HashMap uses for hash collisions.Mon, 18 Mar 2019 00:00:00 GMTdata-structuresjavahttps://blog.mengw.io/en-US/posts/http-versions/https://blog.mengw.io/en-US/posts/http-versions/What changed across HTTP 1.0/1.1, SPDY, and HTTP 2 — multiplexing, header compression, server push, and how multiplexing differs from keep-alive.Sat, 16 Mar 2019 00:00:00 GMThttpnetworkinghttps://blog.mengw.io/en-US/posts/array-flatten-recursion-to-generators/https://blog.mengw.io/en-US/posts/array-flatten-recursion-to-generators/Three takes on the array flattening problem: recursion, hand-rolled iterators, generators (yield*).Thu, 14 Mar 2019 00:00:00 GMTjavascriptgeneratorsiteratorshttps://blog.mengw.io/en-US/posts/aws-web-architecture/https://blog.mengw.io/en-US/posts/aws-web-architecture/GCP vs AWS load-balancer comparison, plus a deployment shape for a typical web app.Tue, 12 Mar 2019 00:00:00 GMTcloudarchitectureawsgcphttps://blog.mengw.io/en-US/posts/sonarqube-javascript/https://blog.mengw.io/en-US/posts/sonarqube-javascript/Sonarqube's Java docs are deep. JS/TS, less so — here's a working setup.Thu, 07 Mar 2019 00:00:00 GMTjavascripttoolingqahttps://blog.mengw.io/en-US/posts/quick-sort/https://blog.mengw.io/en-US/posts/quick-sort/An in-place quicksort in TypeScript, with a note on why a left-side pivot forces right-to-left scanning.Tue, 05 Mar 2019 00:00:00 GMTalgorithmssortinghttps://blog.mengw.io/en-US/posts/dynamic-programming/https://blog.mengw.io/en-US/posts/dynamic-programming/What DP is, and what kinds of problems it's actually useful for.Mon, 04 Mar 2019 00:00:00 GMTalgorithmsdynamic-programminghttps://blog.mengw.io/en-US/posts/nginx-tuning/https://blog.mengw.io/en-US/posts/nginx-tuning/A handful of Nginx config knobs worth knowing: workers, file descriptors, TCP options.Fri, 15 Feb 2019 00:00:00 GMTlinuxnginxhttps://blog.mengw.io/en-US/posts/is-array/https://blog.mengw.io/en-US/posts/is-array/Array.isArray, instanceof, and Object.prototype.toString.call, and where each one breaks.Sun, 09 Sep 2018 00:00:00 GMTjavascripttypeshttps://blog.mengw.io/en-US/posts/webpack-config-notes/https://blog.mengw.io/en-US/posts/webpack-config-notes/A few webpack pitfalls hit while wiring up ghoti-cli's fully-static React template.Wed, 28 Mar 2018 00:00:00 GMTjavascriptwebpackhttps://blog.mengw.io/en-US/posts/nginx-node-service/https://blog.mengw.io/en-US/posts/nginx-node-service/Routing traffic through Nginx to a Node app listening on a non-standard port.Sat, 24 Mar 2018 00:00:00 GMTlinuxnginxnodehttps://blog.mengw.io/en-US/posts/securing-new-linux-server/https://blog.mengw.io/en-US/posts/securing-new-linux-server/First-pass hardening on a fresh DigitalOcean Droplet: non-root user, SSH port, key-only login.Wed, 14 Mar 2018 00:00:00 GMTlinuxsecuritysshhttps://blog.mengw.io/en-US/posts/multi-process-node/https://blog.mengw.io/en-US/posts/multi-process-node/Using Node's cluster module to spread work across cores.Thu, 07 Dec 2017 00:00:00 GMTnodeconcurrencyhttps://blog.mengw.io/en-US/posts/react-native-install/https://blog.mengw.io/en-US/posts/react-native-install/Setting up React Native on Windows / Ubuntu / CentOS.Tue, 28 Nov 2017 00:00:00 GMTmobilereact-nativeandroidhttps://blog.mengw.io/en-US/posts/centos-install-guide/https://blog.mengw.io/en-US/posts/centos-install-guide/A handful of common install commands on CentOS.Tue, 17 Oct 2017 00:00:00 GMTlinuxcentoshttps://blog.mengw.io/en-US/posts/minify-ternary/https://blog.mengw.io/en-US/posts/minify-ternary/When the wire format is text, code size is cost — reach for the ternary.Thu, 10 Aug 2017 00:00:00 GMTjavascriptminificationhttps://blog.mengw.io/en-US/posts/this-chained/https://blog.mengw.io/en-US/posts/this-chained/An old caperjs refactor and the `this` chain that wasn't.Wed, 09 Aug 2017 00:00:00 GMTjavascriptscopehttps://blog.mengw.io/en-US/posts/native-deps-npm-on-windows/https://blog.mengw.io/en-US/posts/native-deps-npm-on-windows/A few npm packages ship C++ or Python code that needs node-gyp. On Windows that means windows-build-tools.Thu, 29 Jun 2017 00:00:00 GMTjavascriptnodewindowshttps://blog.mengw.io/en-US/posts/swift-wkwebview-photo-upload/https://blog.mengw.io/en-US/posts/swift-wkwebview-photo-upload/Fixing the iPhone bug where WKWebView's photo picker also dismisses the parent NavigationController.Mon, 26 Jun 2017 00:00:00 GMTswiftioswebviewhttps://blog.mengw.io/en-US/posts/hybrid-app-notes/https://blog.mengw.io/en-US/posts/hybrid-app-notes/Notes from a stretch of hybrid-app work — WebView interop, layout, packaging.Fri, 23 Jun 2017 00:00:00 GMTmobilehybridwebviewhttps://blog.mengw.io/en-US/posts/phpunit-basic/https://blog.mengw.io/en-US/posts/phpunit-basic/Common PHPUnit assertions and a simple test example.Fri, 02 Jun 2017 00:00:00 GMTphptestinghttps://blog.mengw.io/en-US/posts/electron-pit/https://blog.mengw.io/en-US/posts/electron-pit/A handful of things I tripped on while building UpgradeE.Thu, 20 Apr 2017 00:00:00 GMTjavascriptelectronnodehttps://blog.mengw.io/en-US/posts/closure-and-private/https://blog.mengw.io/en-US/posts/closure-and-private/Using closures to implement private in JavaScript.Thu, 13 Apr 2017 00:00:00 GMTjavascriptclosureshttps://blog.mengw.io/en-US/posts/gender-by-name/https://blog.mengw.io/en-US/posts/gender-by-name/A small idea for guessing gender from a Chinese name using Bayes.Wed, 12 Apr 2017 00:00:00 GMTjavascriptexperimentshttps://blog.mengw.io/en-US/posts/dn-02/https://blog.mengw.io/en-US/posts/dn-02/Drive-by frontend notes, part two.Mon, 03 Apr 2017 00:00:00 GMTjavascriptfrontendnoteshttps://blog.mengw.io/en-US/posts/dn-01/https://blog.mengw.io/en-US/posts/dn-01/Drive-by frontend notes, part one.Fri, 17 Mar 2017 00:00:00 GMTjavascriptfrontendnoteshttps://blog.mengw.io/en-US/posts/reviewmd-stuff/https://blog.mengw.io/en-US/posts/reviewmd-stuff/Loose observations from working on Review.md.Thu, 16 Mar 2017 00:00:00 GMTjavascriptnoteshttps://blog.mengw.io/en-US/posts/ubuntu-install-guide/https://blog.mengw.io/en-US/posts/ubuntu-install-guide/Common install and cleanup commands for Ubuntu, kept around for copy-paste.Mon, 13 Mar 2017 00:00:00 GMTlinuxubuntuhttps://blog.mengw.io/en-US/posts/es6-let-and-const/https://blog.mengw.io/en-US/posts/es6-let-and-const/Notes adapted from Ruan Yifeng's ES6 introduction. This part covers let and const.Wed, 16 Nov 2016 00:00:00 GMTjavascriptes6https://blog.mengw.io/en-US/posts/vue-guide/https://blog.mengw.io/en-US/posts/vue-guide/Notes from learning Vue 1.x.Sat, 14 May 2016 00:00:00 GMTjavascriptvue