What is the best way to implement equality in Effect?

The recommended approach is using Data.Class or Schema.Class, which automatically implement both the Equal and Hash traits for structural equality.

How do I sort data by multiple fields in Effect?

You can use the Order.combine function to merge multiple ordering criteria, such as sorting by date and then by a secondary ID or name.

What is the difference between Equal and Equivalence?

Equal defines the default structural equality for a type, while Equivalence allows you to define multiple custom equality relations (like case-insensitive string matching) for specific use cases.

Why does the Hash trait matter for collections?

Effect collections like HashMap and HashSet rely on the Hash trait to generate stable hash codes, ensuring that equal objects always resolve to the same bucket for lookups.

Effect TS Traits & Equality

Name: Effect TS Traits & Equality
Author: andrueandersoncs

byandrueandersoncs

•

API開発

Implements structural equality, hashing, and ordering patterns for Effect TS applications using specialized traits.

This skill provides specialized guidance for implementing and using Effect's trait-based abstractions, including structural equality (Equal), hash generation (Hash), custom relations (Equivalence), and comparison logic (Order). It helps developers maintain consistent behavior across Effect data structures by leveraging Data.Class and Schema.Class for automatic trait implementation, while also providing patterns for manual composition of complex sorting and comparison logic. Use this skill when you need to handle object comparisons, collection lookups, or advanced data sorting within the Effect ecosystem.

主な機能

01Structural equality comparison with the Effect Equal interface

02Consistent hash code generation for optimized collection lookups

033 GitHub stars

04Advanced sorting and comparison using Order.combine and mapInput

05Automatic trait implementation via Data.Class and Schema.Class primitives

06Custom equality relations using Equivalence.make and transformations

ユースケース

01Implementing custom multi-level sorting logic for complex data arrays

02Using value-based objects as keys in Effect HashMap or HashSet collections

03Deduplicating data sets based on specific field criteria using custom Equivalence

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add andrueandersoncs/claude-skill-effect-ts traits

For use in Claude.ai and ChatGPT

Download Skill