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pfw-identified-collections

Store identifiable elements in an IdentifiedArray for O(1) lookups.

16|2|Updated Mar 29, 2018
Search Tags:#performance#swift#state-management#data-structure#identified-collections#identifiable
One-click install
npx skills add https://github.com/khoi/dotfiles --skill pfw-identified-collections-khoi
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: pfw-identified-collections
Source: https://github.com/khoi/dotfiles/tree/main/chezmoi/dot_pfw/skills/identified-collections
Command: npx skills add https://github.com/khoi/dotfiles --skill pfw-identified-collections-khoi

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Efficiently access and manage elements within Swift collections using IdentifiedCollections, enabling fast lookups and safer state handling.

Core Features & Use Cases

  • IdentifiedArray: store identifiable elements and retrieve them by ID in O(1) time.
  • Ergonomic state management: simplifies handling collections in SwiftUI and observable models.
  • Use Case: maintain a list of items where frequent ID-based access is required.

Quick Start

Add the IdentifiedCollections package to your Swift project and create an IdentifiedArrayOf with Identifiable elements.

Frequently Asked Questions about pfw-identified-collections

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I improve SwiftUI state management performance for frequent collection lookups?▼

You can improve SwiftUI state management performance by storing identifiable elements in an IdentifiedArray, which allows retrieving items by ID with O(1) performance using the IdentifiedCollections library.

What is the best way to look up elements by ID in a Swift collection?▼

The best way to look up elements by ID is using IdentifiedArray from the IdentifiedCollections library, providing ergonomic and safer state handling with O(1) lookup times for identifiable types.

Do I need the IdentifiedCollections library to use IdentifiedArray in Swift?▼

Yes, you need to add the IdentifiedCollections package to your Swift project to use IdentifiedArray, along with a type that conforms to the Identifiable protocol.

How do I set up an IdentifiedArrayOf with identifiable elements in Swift?▼

To set up an IdentifiedArrayOf, add the IdentifiedCollections package to your Swift project and initialize it with elements that conform to the Identifiable protocol for fast ID-based access.

Why does iterating through standard Swift arrays for ID lookups cause performance issues?▼

Standard Swift arrays require O(n) time for ID-based lookups, causing performance issues, whereas IdentifiedArray uses a dictionary structure internally to provide O(1) lookup times.

Are there limitations when using IdentifiedCollections for SwiftUI view state?▼

IdentifiedCollections requires elements to conform to the Identifiable protocol, meaning types without an id property cannot be stored in an IdentifiedArray for SwiftUI view state management.

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