EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Lobsters·Sep 8·5 min read
Type inference has usability problems (2019)
TL;DR
Type inference, a feature in many modern programming languages, may not provide the expected benefits and could actually complicate understanding and increase cognitive load for developers.
✦ Why It Matters
Consider explicitly declaring types in your code to enhance clarity and reduce cognitive load.
Key Takeaways
- Evaluate the use of type inference in your projects.
- Consider explicit typing for better code documentation.
- Use tools to check variable types but be aware of cognitive load.
- Stay informed about best practices in type usage.
Full Summary
Type inference allows programming languages to automatically determine the data type of a variable, reducing the need for explicit type declarations. While many modern languages like Go, Rust, and Swift promote type inference, the article suggests that it can complicate understanding code, as developers may struggle to remember or find variable types.
Tools like code editors can provide type information, but relying on them increases cognitive load, similar to performing mental arithmetic. The author highlights that explicit typing can serve as documentation and improve readability, especially in complex code.
Microsoft has even shifted its stance on type inference in C#, recommending explicit types for clarity. The article calls for research into the usability of type inference before it is universally accepted as beneficial.