// 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
IDEs CLion DataGrip DataSpell Fleet GoLand IntelliJ IDEA PhpStorm PyCharm RustRover Rider RubyMine WebStorm Plugins & Services Big Data Tools Code With Me JetBrains Platform Scala Toolbox App Writerside JetBrains AI Grazie Junie JetBrains for Data Kineto Team Tools Datalore Space TeamCity Upsource YouTrack Hub Qodana CodeCanvas .NET & Visual Studio .NET Tools ReSharper C++ Languages & Frameworks K
A few months ago, I set myself the challenge of writing a C compiler in 500 lines of Python1, after writing my SDF donut post. How hard could it be? The answer was, pretty hard, even when dropping quite a few features. But it was also pretty interesting, and the result is surprisingly functional and not too hard to understand! There's too much code for me to comprehensively cover in a single blog
We are excited to announce the release of the new version of Prettier! We have made the migration to using ECMAScript Modules for all our source code. This change has significantly improved the development experience for the Prettier team. Please rest assured that when using Prettier as a library, you can still use it as CommonJS as well. This update comes with several breaking changes. One notabl
Today we’re excited to announce the availability of TypeScript 4.7! If you’re not yet familiar with TypeScript, it’s a language that builds on JavaScript and adds syntax for types. Types help describe what kinds of values you’re working with and what kinds of functions you’re calling. TypeScript can use this information to help you avoid about mistakes like typos, missing arguments, or forgetting
Today we are excited to announce the beta release of TypeScript 4.7! To get started using the beta, you can use npm with the following command: npm install typescript@beta You can also get editor support by Downloading for Visual Studio 2022/2019 Following directions for Visual Studio Code and Sublime Text 3. Here’s a quick list of what’s new in TypeScript 4.7! ECMAScript Module Support in Node.js
Helpful background for code reading The GNU coreutils has its foibles. Many of these utilities are approaching 30 years old and include revisions by many people over the years. Here are some things to keep in mind when reading the code: Tiny programs - These utilities are small, (mostly) single-source file programs designed to do one thing and do it well. They are not designed for long life or to
All JavaScript and TypeScript Features of the last 3 years
TypeScript as envisioned by Stable DiffusionThis article goes through almost all of the changes of the last 3 years (and some from earlier) in JavaScript / ECMAScript and TypeScript . Not all of the following features will be relevant to you or even practical, but they should instead serve to show what’s possible and to deepen your understanding of these languages. There are a lot of TypeScript fe
Weird Lexical Syntax
I just learned 42 programming languages this month to build a new syntax highlighter for llamafile. I feel like I'm up to my eyeballs in programming languages right now. Now that it's halloween, I thought I'd share some of the spookiest most surprising syntax I've seen. The languages I decided to support are Ada, Assembly, BASIC, C, C#, C++, COBOL, CSS, D, FORTH, FORTRAN, Go, Haskell, HTML, Java,
Golang Mini Reference 2022: A Quick Guide to the Modern Go Programming Language (REVIEW COPY)
Golang Mini Reference 2022 A Quick Guide to the Modern Go Programming Language (REVIEW COPY) Harry Yoon Version 0.9.0, 2022-08-24 REVIEW COPY This is review copy, not to be shared or distributed to others. Please forward any feedback or comments to the author. • feedback@codingbookspress.com The book is tentatively scheduled to be published on September 14th, 2022. We hope that when the release da
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
Posted on Tuesday, April 2, 2024. Updated Wednesday, April 3, 2024. Introduction Andres Freund published the existence of the xz attack on 2024-03-29 to the public oss-security@openwall mailing list. The day before, he alerted Debian security and the (private) distros@openwall list. In his mail, he says that he dug into this after “observing a few odd symptoms around liblzma (part of the xz packag
Today we’re excited to announce our Release Candidate (RC) of TypeScript 4.7! Between now and the stable release of TypeScript 4.7, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or use npm with the following command: npm install typescript@rc You can also get editor support by Downloading for Visual Studio 2022/2019 Following
Over the course of my Spring 2020 semester at Harvey Mudd College, I developed a self-hosting compiler entirely from scratch. This article walks through many interesting parts of the project. It’s laid out so you can just read from beginning to end, but if you’re more interested in a particular topic, feel free to jump there. Or, take a look at the project on GitHub. Table of contents What the pro
In the previous post, I covered my motivations for improving ruby/json’s performance, and detailed the first 4 notable optimizations applied to speed up JSON generation. If I was to cover every single optimization applied, at this rate I’d end up with a dozen parts, so I’ll try to only focus on the one that made a significant difference or used an interesting pattern. Reducing Setup Cost - Argumen
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
Note: this article is available as an ebook and as a printed book for easier reading Introduction What is this? When I was first learning Go, I already knew several other programming languages. But after reading an introductory book and the language specification I felt like I really didn’t know enough about Go to use it for real world work. I felt I’d probably need to fall into many traps before
Try Mastering Emacs for free! Are you struggling with the basics? Have you mastered movement and editing yet? When you have read Mastering Emacs you will understand Emacs. It’s that time again: there’s a new major version of Emacs and, with it, a treasure trove of new features and changes. Notable features include the formal inclusion of native compilation, a technique that will greatly speed up y
Type Parameters Proposal
Ian Lance Taylor Robert Griesemer August 20, 2021 StatusThis is the design for adding generic programming using type parameters to the Go language. This design has been proposed and accepted as a future language change. We currently expect that this change will be available in the Go 1.18 release in early 2022. AbstractWe suggest extending the Go language to add optional type parameters to type an
V8 Torque is a language that allows developers contributing to the V8 project to express changes in the VM by focusing on the intent of their changes to the VM, rather than preoccupying themselves with unrelated implementation details. The language was designed to be simple enough to make it easy to directly translate the ECMAScript specification into an implementation in V8, but powerful enough t
Rust Language Cheat Sheet 26. August 2021 Contains clickable links to The Book , Rust by Example , Std Docs , Nomicon , Reference . Data Structures Data types and memory locations defined via keywords. Example Explanation struct S {} Define a struct with named fields. struct S { x: T } Define struct with named field x of type T. struct S (T); Define "tupled" struct with numbered field .0 of type
Compiling a subset of JavaScript to ARM assembly in Haskell - Micah Cantor
A toy compiler for a subset of JavaScript to ARM assembly, using Haskell. Published: May 29, 2022 I recently got a copy of the book Compiling to Assembly from Scratch by Vladamir Keleshev, which details how to write a compiler for a subset of JavaScript to 32-bit ARM assembly code. The choice to use ARM assembly is mainly for its simplicity in comparison to x86. Keleshev elects to use TypeScript t
RFC 2369: The Use of URLs as Meta-Syntax for Core Mail List Commands and their Transport through Message Header Fields
Network Working Group G. Neufeld Request for Comments: 2369 Nisto Category: Standards Track J. Baer SkyWeyr Technologies July 1998 The Use of URLs as Meta-Syntax for Core Mail List Commands and their Transport through Message Header Fields Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improve
// 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
About half a year ago I encountered a paper bombastically titled “the ultimate conditional syntax”. It has the attractive goal of unifying pattern match with boolean if tests, and its solution is in some ways very nice. But it seems over-complicated to me, especially for something that’s a basic work-horse of programming. I couldn’t immediately see how to cut it down to manageable proportions, but
C# at Google Style Guide
C# at Google Style Guide This style guide is for C# code developed internally at Google, and is the default style for C# code at Google. It makes stylistic choices that conform to other languages at Google, such as Google C++ style and Google Java style. Formatting guidelines Naming rules Naming rules follow Microsoft’s C# naming guidelines. Where Microsoft’s naming guidelines are unspecified (e.g
WebKit Features in Safari 26.0
We’re happy to share with you what’s arriving in Safari 26.0! It includes big exciting new features, many important improvements, and lots of attention to detail. We can’t wait to see what you do with Anchor Positioning, Scroll-driven animations, High Dynamic Range images, the new HTML <model> element, the all-new Digital Credentials API, SVG icon support, WebGPU, WebKit in SwiftUI, and much, much
1. Getting started Welcome to Koka – a strongly typed functional-style language with effect types and handlers. Why Koka? A Tour of Koka Install Discussion forum Github Libraries Note: Koka v3 is a research language that is currently under development and not ready for production use. Nevertheless, the language is stable and the compiler implements the full specification. The main things lacking a
Here is a list of common JavaScript interview questions with detailed answers to help you prepare for the interview as a JavaScript developer. JavaScript continues to be a cornerstone of web development, powering dynamic and interactive experiences across the web. As the language evolves, so does the complexity and scope of interview questions for JavaScript developers. Whether you’re a fresher de
ScalaTest
Using matchers ScalaTest provides a domain specific language (DSL) for expressing assertions in tests using the word should. Just mix in should.Matchers, like this: import org.scalatest.flatspec._ import org.scalatest.matchers.should._ class ExampleSpec extends AnyFlatSpec with Matchers { ... You can alternatively import the members of the trait, a technique particularly useful when you want to tr
xv6: a simple, Unix-like teaching operating system Russ Cox Frans Kaashoek Robert Morris September 6, 2021 2 Contents 1 Operating system interfaces 9 1.1 Processes and memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.2 I/O and File descriptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.3 Pipes . . . . . . . . . . . . . . . . . . . . . . . . . .
Combobulate: Structured Movement and Editing with Tree-Sitter
Combobulate: Structured Movement and Editing with Tree-Sitter Combobulate is a package that adds advanced structured editing and movement to many programming modes in Emacs. Here's how it works, and how it can enrich your editing experience in Emacs. About a year ago I released an alpha – prototype, really – version of a tool I call Combobulate. I’d been using it personally for a while before I le
Lil: A Scripting Language
Lil: A Scripting LanguageLil is part of the technology that powers Decker, a multimedia creative tool inspired by HyperCard. Decker uses Lil for adding custom behavior to decks and the widgets within. Lil is designed to be learned in layers, but it is a richly multi-paradigm language which incorporates ideas from imperative, functional, declarative, and vector-oriented languages. on mode a do # li
Python Interview Questions
Here is a list of common Python interview questions with detailed answers to help you prepare for the interview as a Python developer. Python, with its versatile use cases and straightforward syntax, has seen its popularity growing continuously in software development, data science, artificial intelligence, and many other fields. As such, interviews for Python-related positions are designed not on
Summary Enable JavaDoc documentation comments to be written in Markdown rather than solely in a mixture of HTML and JavaDoc @-tags. Goals Make API documentation comments easier to write and easier to read in source form by introducing the ability to use Markdown syntax in documentation comments, alongside HTML elements and JavaDoc tags. Do not adversely affect the interpretation of existing docume
React's core architecture calls the functions you give it (i.e. your components) over and over. This fact both contributed to its popularity by simplifying its mental model, and created a point of possible performance issues. In general, if your functions do expensive things, then your app will be slow. Performance tuning, therefore, became a pain point for devs, as they had to manually tell React
Django for Startup Founders: A better software architecture for SaaS startups and consumer apps
In an ideal world, startups would be easy. We'd run our idea by some potential customers, build the product, and then immediately ride that sweet exponential growth curve off into early retirement. Of course it doesn't actually work like that. Not even a little. In real life, even startups that go on to become billion-dollar companies typically go through phases like: Having little or no growth fo
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Google TypeScript Style Guide
JavaScript Best Practices | The WebStorm Blog
Writing a C compiler in 500 lines of Python
Prettier 3.0: Hello, ECMAScript Modules! · Prettier
Announcing TypeScript 4.7 - TypeScript
Announcing TypeScript 4.7 Beta - TypeScript
Decoded: GNU coreutils – MaiZure's Projects
research!rsc: The xz attack shell script
Announcing TypeScript 4.7 RC - TypeScript
Kalyn: a self-hosting compiler for x86-64
Optimizing Ruby’s JSON, Part 2
All C++20 core language features with examples
Darker Corners of Go – Rytis Biel
What's New in Emacs 28.1?
V8 Torque user manual · V8
https://cheats.rs/rust_cheat_sheet.pdf
Google TypeScript Style Guide
the penultimate conditional syntax – Tony Finch
The Koka Programming Language
JavaScript Interview Questions
xv6: a simple, Unix-like teaching operating system
JEP 467: Markdown Documentation Comments
Understanding React Compiler | Tony Alicea