2023-01-09
1897
#vanilla javascript
Chris Laughlin
104150
Jan 9, 2023 ⋅ 6 min read

Understanding JavaScript’s Array.Group and Array.GroupToMap

Chris Laughlin JavaScript nerd with 10 plus years of experience in web development. I like tech, coffee and photography. I can usually be found at my desk in the dark making the world a better place, one arrow function at a time.

Recent posts:

Fix over-caching with dynamic IO caching in Next.js 15

Next.js 15 caching overhaul: Fix overcaching with Dynamic IO and the use cache directive.

David Omotayo
Aug 6, 2025 ⋅ 10 min read
LLMs are facing a QA crisis here’s how we could solve it

LLMs are facing a QA crisis: Here’s how we could solve it

LLM QA isn’t just a tooling gap — it’s a fundamental shift in how we think about software reliability.

Rosario De Chiara
Aug 4, 2025 ⋅ 7 min read

Windsurf vs. Cursor: When to choose the challenger

Windsurf AI brings agentic coding and terminal control right into your IDE. We compare it to Cursor, explore its features, and build a real frontend project.

Chizaram Ken
Jul 31, 2025 ⋅ 9 min read

The CSS if() function: Conditional styling will never be the same

The CSS Working Group has approved the if() function for development, a feature that promises to bring true conditional styling directly to our stylesheets.

Ikeh Akinyemi
Jul 30, 2025 ⋅ 12 min read
View all posts

2 Replies to "Understanding JavaScript’s <code>Array.Group</code> and <code>Array.GroupToMap</code>"

Leave a Reply