// Good: choose between two options as appropriate (see below). import * as ng from '@angular/core'; import {Foo} from './foo'; // Only when needed: default imports. import Button from 'Button'; // Sometimes needed to import libraries for their side effects: import 'jasmine'; import '@polymer/paper-button'; Import paths TypeScript code must use paths to import other TypeScript code. Paths may be r
Today we’re excited to announce the release of TypeScript 5.0! This release brings many new features, while aiming to make TypeScript smaller, simpler, and faster. We’ve implemented the new decorators standard, added functionality to better support ESM projects in Node and bundlers, provided new ways for library authors to control generic inference, expanded our JSDoc functionality, simplified con
エンジニアリンググループ 新規プロダクト支援チーム所属の荒谷(@_a_akira)です。 あまり知られていないかもしれませんが弊社では、2019年末から既に6つの新規アプリをFlutterで実装しリリースしています。 先日リリースされたデジカルスマート診療(以降デジスマアプリ)という医療機関向けに予約やキャッシュレス決済を導入・利用できるアプリもFlutterで作成しています。 digikar-smart.jp このサービスの立ち上げからリリースまでの開発期間は約3ヶ月で開発側の人数もPdM1人、アシスタントPdM1人、デザイナー1人、バックエンド2人、WEB フロント(クリニック向け管理画面)1人、アプリ(患者向け, Flutter)1人の構成で開発しています。 このあたりの開発体制については先日記事が上がっているので興味のある方はそちらを見てみてください。 www.m3tech.blo
I recently realized stdout is much faster than stderr for Rust. Here are my findings after diving deep into this rabbit hole. I have been using the terminal (i.e. command-line) for most of my day-to-day things for a while now. I was always fascinated by the fact that how quick and convenient the command-line might be and that's why I'm a proponent of using CLI (command-line) or TUI (terminal user
The Development of the C Language* Dennis M. Ritchie Bell Labs/Lucent Technologies Murray Hill, NJ 07974 USA dmr@bell-labs.com ABSTRACT The C programming language was devised in the early 1970s as a system implementation language for the nascent Unix operating system. Derived from the typeless language BCPL, it evolved a type structure; created on a tiny machine as a tool to improve a meager progr
Programming is an iterative process - as much as we would like to come up with the perfect solution from the start, it rarely works that way. Good programs often start as quick prototypes. The bad ones stay prototypes, but the best ones evolve into production code. Whether you’re writing games, CLI tools, or designing library APIs, prototyping helps tremendously in finding the best approach before
Today we’re excited to announce our beta release of TypeScript 5.0! This release brings many new features, while aiming to make TypeScript, smaller, simpler, and faster. We’ve implemented the new decorators standard, functionality to better support ESM projects in Node and bundlers, new ways for library authors to control generic inference, expanded our JSDoc functionality, simplified configuratio
Object Structure in JavaScript EnginesFrom a developer's perspective, objects in JavaScript are quite flexible and understandable. We can add, remove, and modify object properties on our own. However, few people think about how objects are stored in memory and processed by JS engines. Can a developer's actions, directly or indirectly, impact performance and memory consumption? Let's try to delve i
Parsing SQL - Strumenta
The code for this tutorial is on GitHub: parsing-sql SQL is a language to handle data in a relational database. If you worked with data you have probably worked with SQL. In this article we will talk about parsing SQL. It is in the same league of HTML: maybe you never learned it formally but you kind of know how to use it. That is great because if you know SQL, you know how to handle data. However
TypeScript is Surprisingly OK for Compilers Aug 17, 2023 There are two main historical trends when choosing an implementation language for something compiler-shaped. For more language-centric tasks, like a formal specification, or a toy hobby language, OCaml makes most sense. See, for example, plzoo or WebAssembly reference interpreter. For something implementation-centric and production ready, C+
Today we’re excited to announce our Release Candidate of TypeScript 5.0! Between now and the stable release of TypeScript 5.0, we expect no further changes apart from critical bug fixes. This release brings many new features, while aiming to make TypeScript, smaller, simpler, and faster. We’ve implemented the new decorators standard, functionality to better support ESM projects in Node and bundler
Text editors can be an interesting challenge to program. The types of problems that text editors need to solve can range from trivial to mind-bogglingly difficult. Recently, I have been on something of a spiritual journey to rework some internal data structures in an editor I have been building, specifically the most fundamental data structure to any text editor: the text. Table of Contents Resour
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
もう一度学び直すStorybook
みなさんこんにちは！株式会社アルダグラムでエンジニアをしている大木です。今回は、Storybook を学び直していこうかなと思います。 現在弊社ではStorybookを利用しており、レビューやデザイナーとの連携で活用しています。特に何かに困っているわけでもないのですが、もっとうまく使いこなせないのかなぁと考えていたところでした。 今までは6系を使っていたのですが、とあるチームが8系へのアップデートの作業をしてくださいました(ありがたい限りです)。 そういったキャッチアップのためにも学び直しをしていこうかと思います。 インストール インストールに関しては以下のページが参考になるかと思います。 今回は以下で実行します。 今回は React + Vite の構成でStorybookを作成してみようかと思います。プロジェクトが作成され、Storybookが起動するかと思います。Formatterは
Unity2020.2から使えるC#8の機能をまとめました。 Unity2020.2からC#8の機能が使えるようになりました 使えない機能 readonly members Switchが式として使えるように パターンマッチングの強化 プロパティパターン タプルパターン 位置指定パターン（Positional Patterns） using宣言 静的ローカル関数 破棄可能なref構造体 null参照許容型 null合体割り当て演算子 Genericな構造体のアンマネージドの取り扱い 文字列挿入の書き方 関連 参考 Unity2020.2.3 Unity2020.2からC#8の機能が使えるようになりました Unity2020.2のアップデートで、C#8の機能の大部分が使えるようになりました。 以下のページに列挙されている機能のうち一部機能を除いたものが使えます。 docs.microsoft
Introduction The story behind this article is very simple, I wanted to learn about new C++20 language features and to have a brief summary for all of them on a single page. So, I decided to read all proposals and create this “cheat sheet” that explains and demonstrates each feature. This is not a “best practices” kind of article, it serves only demonstrational purpose. Most examples were inspired
こんにちは！レシピ事業部の藤坂(@yujif_) です。 クックパッドiOSアプリの開発者用機能として「ログ確認ツール」を作ってみました。社内で1年以上運用して好評なので、その経緯や学びをまとめてみます。 iOSDC Japan 2022 では「モバイルアプリの行動ログの『仕込み』を快適にする」と題して関連した内容を発表しています。こちらの資料も合わせてご覧ください。 speakerdeck.com アプリ内ログ確認ツールとは 1. ログ履歴 ログの内容確認が楽になる 2. ログ定義辞書 知らないログの意味が分かる ログを業務に活かしやすくなる 3. ログ送信チェックリスト ログが送られていない！？ QA作業でログの実装漏れもわかる 実装担当者以外でも分担できる 実装方法 1. 送信済みログを読み出せるようにする os.Logger で書き込む OSLogStore で読み出す 2. ログ
Manuel Cerón
Last year I finally decided to learn some Rust. The official book by Steve Klabnik and Carol Nichols is excellent, but even after reading it and working on some small code exercises, I felt that I needed more to really understand the language. I wanted to work on a small project to get some hands-on experience, but most of my ideas didn’t feel very well suited for Rust. Then I started reading the
Modular Errors in Rust
It is thankfully common wisdom nowadays that documentation must be placed as near as possible to the code it documents, and should be fine-grained to a minimal unit of describability (the thing being documented). The practice provides numerous benefits to the codebase and project as a whole: When editing the source code, contributors are less likely to forget to update the documentation as well, e
I did this in 2020 and then again in 2021, but I’m in the mood to look around again. Let’s look through Are We GUI Yet? and see what’s up these days. The task today is to have a text label and an input field that can change the text in the label. In React, for example, this is basically free: const Demo = () => { let [state, setState] = useState("Hello, world!"); return ( <div> <p>{state}</p> <inp
Rust for Secure IoT Applications: Why C Is Getting Rusty
www.embedded-world.eu Rust for Secure IoT Applications Why C Is Getting Rusty Mario Noseda, Fabian Frei, Andreas Rüst, Simon Künzli Zurich University of Applied Sciences (ZHAW) Institute of Embedded Systems (InES) Winterthur, Switzerland mario.noseda@zhaw.ch, fabian.frei@zhaw.ch, andreas.ruest@zhaw.ch, simon.kuenzli@zhaw.ch Abstract— Memory corruption is still the most used type of exploit in toda
Safer Usage Of C++
Safer Usage Of C++ This document is PUBLIC. Chromium committers can comment on the original doc. If you want to comment but can’t, ping palmer@. Thanks for reading! Google-internal short link: go/safer-cpp Authors/Editors: adetaylor, palmer Contributors: ajgo, danakj, davidben, dcheng, dmitrig, enh, jannh, jdoerrie, joenotcharles, kcc, markbrand, mmoroz, mpdenton, pkasting, rsesek, tsepez, awhalle
Mini-post: Digraphs and Trigraphs | ENOSUCHBLOG C alternative tokens - Wikipedia Why are there digraphs in C and C++? - Stack Overflow Purpose of Trigraph sequences in C++? A brief description of Normative Addendum 1 Designated initializer # These allow you to specify which elements of an object (array, structure, union) are to be initialized by the values following. The order does not matter! str
In this write-up, I will walk you through an implementation of a string formatting library for C++ I came up with for my video game. The end result came out really compact, at only 65 lines of code—providing a skeleton that can be supplemented with additional functionality at low cost. Usage Given a format buffer… char buffer[64]; String_Buffer buf = {str, sizeof str}; …the fmt::format function pr
A professional programmer delivers value through the authoring and maintaining of software that solves problems. (There are other important ways for professional programmers to deliver value but this post is about programming.) Programmers rely on various tools to author software. Arguably the most important and consequential choice of tool is the programming language. In this post, I will articul
No trial. No credit card required. Just your GitHub account. With .NET 5 released in November, it’s a good time to talk about some of the many improvements in the networking stack. This includes improvements around HTTP, Sockets, networking-related security, and other networking primitives. In this post, I will highlight some of the more impactful and interesting changes in the release. HTTP Bette
// Good: choose between two options as appropriate (see below). import * as ng from '@angular/core'; import {Foo} from './foo'; // Only when needed: default imports. import Button from 'Button'; // Sometimes needed to import libraries for their side effects: import 'jasmine'; import '@polymer/paper-button'; Import paths TypeScript code must use paths to import other TypeScript code. Paths may be r
Basic MetaProgramming in Zig
While I've written a lot about Zig, I've avoided talking about Zig's meta programming capabilities which, in Zig, generally falls under the "comptime" umbrella. The idea behind "comptime" is to allow Zig code to be run at compile time in order to generate code. It's often said that an advantage of Zig's comptime is that it's just Zig code, as opposed to a separate, often limited, language as seen
Zig 言語リファレンス
index.md これは Zig ドキュメント 0.10.1 を DeepL Pro と ChatGPT を利用して翻訳したものです。 一部 master なモノもあります、ごちゃ混ぜです 自分用に翻訳しています zig_doc_0.10.1.md Zig 言語リファレンス はじめに Zig は、堅牢で最適かつ再利用可能なソフトウェアを維持するための汎用プログラミング言語およびツールチェインです。 ロバスト メモリ不足などのエッジケースでも正しく動作する。 最適化 プログラムが最適に動作・実行されるように記述する。 再利用可能 同じコードが、制約の異なる多くの環境で動作します。 保守性 コンパイラや他のプログラマに意図を正確に伝えることができる。コードを読むためのオーバーヘッドが少なく、要件や環境の変化に強い言語です。 新しいことを学ぶのに一番効率的な方法は例を見ることであることが多いので
What's new in Swift 5.5? Async/await, actors, throwing properties, and more! Swift 5.5 comes with a massive set of improvements – async/await, actors, throwing properties, and many more. For the first time it’s probably easier to ask “what isn’t new in Swift 5.5” because so much is changing. In this article I’m going to walk through each of the changes with code samples, so you can see how each of
BPF CO-RE reference guide
The missing manual BPF CO-RE (Compile Once – Run Everywhere) is a modern approach to writing portable BPF applications that can run on multiple kernel versions and configurations without modifications and runtime source code compilation on the target machine. This is in direct opposition to the more traditional approach provided by BCC framework in which BPF application source code compilation is
This post is based on my RustNationUK ‘24 talk with the same title. The talk video is on youtube, the slides are served from here. Also, here’s the lyrics of the song I introduced the talk with (sung to the tune of Bob Dylan’s “The times, they are a-changin’”): Come gather Rustaceans wherever you roam and admit that our numbers have steadily grown. The community’s awesomeness ain’t set in stone, s
Patterns.PDF
Robert C. Martin Copyright (c) 2000 by Robert C. Martin. All Rights Reserved. www.objectmentor.com 1 Design Principles and Design Patterns Robert C. Martin www.objectmentor.com What is software architecture? The answer is multitiered. At the highest level, there are the architecture patterns that define the overall shape and structure of software applications1 . Down a level is the architecture th
Version 12.1 of the GNU Compiler Collection (GCC) is expected to be released in April 2022. Like every major GCC release, this version will bring many additions, improvements, bug fixes, and new features. GCC 12 is already the system compiler in Fedora 36. GCC 12 will also be available on Red Hat Enterprise Linux in the Red Hat Developer Toolset (version 7) or the Red Hat GCC Toolset (version 8 an
I've been using Nim for about 1-2 years now, and I believe the language is undervalued. It's not perfect, of course, but it's pleasant to write and read. My personal website uses Nim. After reading a recent article on Nim ("Why Nim") and the associated HN comments, it's clear that comments and some information about Nim are misleading and outdated. Since Nim 2, a tracing Garbage Collector is not t
Table of Contents Handy tools for our Plugin System Async with the C ABI LCCC Safer FFI CGlue Miri cbindgen Working with abi_stable Versioning Loading plugins Handling state Regular Rust Interface types Trait objects Error handling Version mismatch Missing fields and wrong types Panicking Panicking and FFI Aborting C-unwind AbortBomb Recovering with catch_unwind Type conversions Thread safety Perf
Rust vs C++ Formatting
In Rust, if I want to print some 32-bit unsigned value in hex, with the leading 0x, padded out with zeros, I would write that as: println!("{:#010x}", value); In C++23, if I want to do the same, that’s: std::println("{:#010x}", value); The only difference is the spelling of the name of the thing we’re calling (which is a function template in C++ and a macro in Rust) - otherwise, identical. Neverth
The top image shows the structural editor, and shell, for the eyg programming language running on a phone. Later on I’ll show it running on a TV. On both devices the structural editor is a better coding experience than a text editor would be. This post outlines the evolution of the editor over several years, and highlights the major changes over time along with some design thoughts and implementat
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.64.1: The update addresses these security issues. Update 1.64.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the January 2022 release of Visual Studio Code. There are many updates in this version that we
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Google TypeScript Style Guide
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Flutterアプリでのデザインマネジメント - エムスリーテックブログ
Why stdout is faster than stderr? - Orhun's Blog
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【Unity】Unity2020.2から使えるC#8の機能まとめ - LIGHT11
All C++20 core language features with examples
開発を快適にするiOSアプリ内ログ確認ツール - クックパッド開発者ブログ
A 2025 Survey of Rust GUI Libraries
Lesser known tricks, quirks and features of C
A string formatting library in 65 lines of C++
Gregory Szorc's Digital Home | Rust is for Professionals
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Google TypeScript Style Guide
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Easy Mode Rust — Llogiq on stuff
New C++ features in GCC 12 | Red Hat Developer
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Plugins in Rust: Reducing the Pain with Dependencies
The evolution of a structural code editor
January 2022 (version 1.64)