solid-core-secondary-primitives

Explain SolidJS advanced reactive primitives for fine-grained state updates.

Updated Jan 4, 2026
One-click install
npx skills add https://github.com/vallafederico/solid-ai-rules --skill solid-core-secondary-primitives
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: solid-core-secondary-primitives
Source: https://github.com/vallafederico/solid-ai-rules/tree/main/.claude/skills/solid-core-secondary-primitives
Command: npx skills add https://github.com/vallafederico/solid-ai-rules --skill solid-core-secondary-primitives

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps developers understand and effectively utilize SolidJS's advanced reactive primitives for fine-grained control over state updates and side effects, optimizing application performance and behavior.

Core Features & Use Cases

  • Fine-grained Control: Manage reactivity timing with createComputed, createDeferred, createReaction, createRenderEffect, and createSelector.
  • Performance Optimization: Reduce unnecessary re-renders and defer non-critical updates.
  • Use Case: Optimize a search component by deferring API calls until the user has finished typing, preventing excessive requests and improving responsiveness.

Quick Start

Explain the use case for createDeferred in optimizing a search input.

Frequently Asked Questions about solid-core-secondary-primitives

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

FAQPage Schema
How do I defer non-critical state updates in SolidJS to improve performance?

Use createDeferred in SolidJS to delay non-critical state updates until the browser is idle, preventing excessive re-renders and improving UI responsiveness during high-frequency input changes.

What is the difference between createComputed and createRenderEffect in SolidJS?

createComputed runs immediately and tracks dependencies without batching, suited for synchronous state derivation. createRenderEffect runs during the render phase, making it ideal for DOM updates tied directly to reactive state changes in SolidJS.

How does createSelector work for optimizing list rendering in SolidJS?

createSelector optimizes list rendering in SolidJS by creating a signal that tracks the selected item, ensuring only the previously selected and newly selected items update rather than re-evaluating the entire list.

When should I use createReaction instead of other reactive primitives in SolidJS?

Use createReaction in SolidJS when you need explicit control over dependency tracking, allowing you to dynamically track signals only when a specific condition is met and defer side effects until necessary.

Can I optimize a search component in SolidJS to prevent excessive API calls?

Yes, wrap your search input state with createDeferred in SolidJS to delay API calls until the user stops typing, effectively reducing unnecessary network requests and improving application responsiveness.