Why doesn't TypeScript properly type Object.keys?

Why doesn't TypeScript properly type Object.keys?

11/25/2023

link

https://alexharri.com/blog/typescript-structural-typing

summary

In this blog post, the author explores the concept of structural typing in TypeScript. Structural typing is a type system that focuses on the structure and shape of an object rather than its explicit type. The article explains how structural typing differs from nominal typing, which is commonly used in languages like Java and C#. It also discusses the benefits and drawbacks of using structural typing in TypeScript, such as increased flexibility and easier code reuse. The author provides examples and scenarios where structural typing can be particularly useful and offers insights on how to leverage this feature effectively in TypeScript development.

tags

typescript ꞏ structural typing ꞏ type system ꞏ programming languages ꞏ static typing ꞏ dynamic typing ꞏ type inference ꞏ type checking ꞏ type safety ꞏ nominal typing ꞏ duck typing ꞏ type compatibility ꞏ type coercion ꞏ type annotations ꞏ type declarations ꞏ type parameters ꞏ type aliases ꞏ type guards ꞏ type widening ꞏ type narrowing ꞏ type unions ꞏ type intersections ꞏ type assertions ꞏ type erasure ꞏ type reflection ꞏ type information ꞏ type signatures ꞏ type errors ꞏ type hierarchy ꞏ typecasting ꞏ type conversion ꞏ subtype ꞏ supertype ꞏ type theory ꞏ type aliasing ꞏ type definitions ꞏ type predicates ꞏ type system design ꞏ type soundness ꞏ type completeness ꞏ type denotations ꞏ type variables ꞏ type constraints ꞏ typescript development ꞏ programming best practices ꞏ static analysis ꞏ object-oriented programming ꞏ functional programming ꞏ software engineering