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What's New in C# 14: Null-Conditional Assignments

news.ycombinator.com Unknown 2025-09-16 04:08:45

C# 14, coming with .NET 10, introduces null-conditional assignment, a feature that lets you safely assign values to properties or indexers without endless if statements. Learn more about this new feature in this article. What's New in C# 14 Series What's New in C# 14: User-Defined Compound Assignments What's New in C# 14: Null-Conditional Assignments If you've ever developed in C#, you've likely encountered a snippet like the one below: if (config?.Settings is not null) { config.Settings.Ret

Topics: conditional customer new null value

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Marvel Is Ready to Make Knull Happen Again

gizmodo.com Justin Carter 2025-09-18 20:40:04

Since he first debuted as the big bad of Donny Cates and Ryan Stegman’s Venom run, Marvel’s been giving symbiote god Knull a bigger spotlight. Between his King in Black event, being a seasonal villain in Marvel Rivals, and his appearance in Venom: The Last Dance, it’s clear the publisher wants to put him in the same tier as Green Goblin or Thanos. Now, in its biggest move to build the baddie up yet, the publisher is giving the gooey baddie a solo story ahead of a larger event on the horizon. Sp

Topics: 2026 knull symbiote venom villain

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Intuitive find and replace CLI (sed alternative)

news.ycombinator.com Unknown 2025-10-14 16:21:51

sd - s earch & d isplace sd is an intuitive find & replace CLI. The Pitch Why use it over any existing tools? Painless regular expressions. sd uses regex syntax that you already know from JavaScript and Python. Forget about dealing with quirks of sed or awk - get productive immediately. String-literal mode. Non-regex find & replace. No more backslashes or remembering which characters are special and need to be escaped. Easy to read, easy to write. Find & replace expressions are split up, w

Topics: echo json null sd sed

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Nullable vs. Nullable in C#

news.ycombinator.com Unknown 2025-10-16 00:27:31

Nullable vs nullable in C# One of the most unfortunate parts of the nullability narrative in C# is the reuse of the T? syntax to denote two completely separate concepts for value types and reference types. This leads to some odd and confusing behaviour. As you may know, nullable value types is a much older concept than nullable reference types. Nullable value types were introduced in C# 2.0, whereas nullable reference types came in C# 8.0. And they’re not the same. Nullable isn’t nullable. Fo

Topics: ienumerable nullable tr type types

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Benchmarks for Golang SQLite Drivers

news.ycombinator.com Unknown 2025-10-27 10:13:39

Benchmarks for Golang SQLite Drivers Note This work is sponsored by Monibot - Website, Server and Application Monitoring. Try out Monibot for free at https://monibot.io. For benchmarks I used the following libraries: bvinc, github.com/bvinc/go-sqlite-lite, a CGO-based solution. This is not a database/sql driver. craw, github.com/crawshaw/sqlite, a CGO-based solution. This is not a database/sql driver. eaton, github.com/eatonphil/gosqlite, a CGO-based solution. This is not a database/sql dri

Topics: database driver null query users

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Show HN: Typed-arrow – compile‑time Arrow schemas for Rust

news.ycombinator.com Unknown 2025-11-01 12:34:36

typed-arrow provides a strongly typed, fully compile-time way to declare Arrow schemas in Rust. It maps Rust types directly to arrow-rs typed builders/arrays and arrow_schema::DataType — without any runtime DataType switching — enabling zero runtime cost, monomorphized column construction and ergonomic ORM-like APIs. Why compile-time Arrow? Performance: monomorphized builders/arrays with zero dynamic dispatch; avoids runtime DataType matching. matching. Safety: column types, names, and nullab

Topics: arrow column list nullable option

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Why Semantic Layers Matter (and how to build one with DuckDB)

news.ycombinator.com Unknown 2025-11-05 18:49:15

Many ask themselves, "Why would I use a semantic layer? What is it anyway?" In this hands-on guide, we’ll build the simplest possible semantic layer using just a YAML file and a Python script—not as the goal itself, but as a way to understand the value of semantic layers. We’ll then query 20 million NYC taxi records with consistent business metrics executed using DuckDB and Ibis. By the end, you’ll know exactly when a semantic layer solves real problems and when it’s overkill. It's a topic that

Topics: data layer null semantic yes

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OpenBSD is so fast, I had to modify the program slightly to measure itself

news.ycombinator.com Unknown 2025-11-10 20:25:02

Here’s a little benchmark complements of Jann Horn. It’s unexpectedly slow on Linux. OpenBSD is so fast, I had to modify the program slightly to measure itself, as the time utility is missing sufficient precision to even record nonzero. All it does is create one extra thread, then both existing threads create 256 sockets. What’s so hard about that? #include <pthread.h> #include <unistd.h> #include <err.h> #include <stdio.h> #include <sys/time.h> #include <sys/socket.h> static void open_socket

Topics: elapsed include null ox thread

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Nullable but not null

news.ycombinator.com Unknown 2025-12-21 11:22:02

When working on backend applications, especially those with evolving database schemas, it’s common to see a recurring pattern: A new field is added to a model. To avoid locking the table during the migration, the field is added as nullable. The application logic is updated to start filling in this field. A backfill job runs to populate the existing records. The field is left as nullable. People often forget the final step which is updating the schema to make the field non-nullable once the dat

Topics: field model nullable schema total_rows

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Researchers value null results, but struggle to publish them

news.ycombinator.com Udesky 2025-12-19 12:16:26

Credit: Getty Scientists overwhelmingly recognize the value of sharing null results, but rarely publish them in the research literature, according to a survey. The findings suggest that there is a need for increased awareness of how and why to share such data, as well as for changes in how research productivity is assessed. The survey drew responses from 11,069 researchers in 166 countries and all major scientific disciplines. It found that 98% recognize the value of null results, which the su

Topics: null publish publishing research results

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nullable but not null

news.ycombinator.com Unknown 2025-12-22 05:22:02

When working on backend applications, especially those with evolving database schemas, it’s common to see a recurring pattern: A new field is added to a model. To avoid locking the table during the migration, the field is added as nullable. The application logic is updated to start filling in this field. A backfill job runs to populate the existing records. The field is left as nullable. People often forget the final step which is updating the schema to make the field non-nullable once the dat

Topics: field model nullable schema total_rows

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Show HN: Petrichor – a free, open-source, offline music player for macOS

news.ycombinator.com Unknown 2026-01-22 15:17:31

Petrichor An offline music player for macOS Summary ✨ Features Everything you'd expect from an offline music player! Map your music folders and browse your library in an organized view. Create playlists and manage the play queue interactively. Browse music using folder view when needed. Pin anything (almost!) to the sidebar for quick access to your favorite music. Navigate easily: right-click a track to go to its album, artist, year, etc. Native macOS integration with menubar and

Topics: datetime default integer null text

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Choosing a Database Schema for Polymorphic Data (2024)

news.ycombinator.com Nick Tobey 2026-01-25 06:13:21

Designing a schema for your relational database is a daunting task that has long term implications for the database's performance, maintainability, and correctness. And it often requires making decisions before having a clear picture of the exact shape and distribution of your data, or what the common access patterns will look like. It's not a permanent decision: tables can be altered and databases migrated. But these migrations can be slow and expensive. To top it all off, some data is less am

Topics: data id null patients table

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Using Wave Function Collapse to solve puzzle map generation at scale

news.ycombinator.com Unknown 2026-02-26 20:42:34

🎮Game 🧩Puzzle 🤖Algorithm 🎲PCG 💻Game Dev Background Logic Islands, released by sublevelgames on June 20, 2025, is a game where players place islands and walls according to predefined rule sets. The game features 6 different rule sets, and WFC was used to create stages for 3 of these rules. Today, I’d like to share the story behind this implementation. WFC WFC (Wave Function Collapse) is a type of PCG (Procedural Contents Generation) algorithm that analyzes the connectivity patterns of source

Topics: connection islands null tile tiles

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Run structured extraction on documents/images locally with Ollama and Pydantic

news.ycombinator.com Unknown 2025-11-09 05:54:10

Welcome to VLM Run Hub, a comprehensive repository of pre-defined Pydantic schemas for extracting structured data from unstructured visual domains such as images, videos, and documents. Designed for Vision Language Models (VLMs) and optimized for real-world use cases, VLM Run Hub simplifies the integration of visual ETL into your workflows. Image JSON { "issuing_state" : " MT " , "license_number" : " 0812319684104 " , "first_name" : " Brenda " , "middle_name" : " Lynn " , "last_name" : " Sample

Topics: data hub invoice null schemas

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Latest Tech News

What's New in C# 14: Null-Conditional Assignments

Marvel Is Ready to Make Knull Happen Again

Intuitive find and replace CLI (sed alternative)

Nullable vs. Nullable in C#

Benchmarks for Golang SQLite Drivers

Show HN: Typed-arrow – compile‑time Arrow schemas for Rust

Why Semantic Layers Matter (and how to build one with DuckDB)

OpenBSD is so fast, I had to modify the program slightly to measure itself

Nullable but not null

Researchers value null results, but struggle to publish them

nullable but not null

Show HN: Petrichor – a free, open-source, offline music player for macOS

Choosing a Database Schema for Polymorphic Data (2024)

Using Wave Function Collapse to solve puzzle map generation at scale

Run structured extraction on documents/images locally with Ollama and Pydantic

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