js-min-max-loop

Finding the smallest or largest element only requires a single pass through the array. Sorting is wasteful and slower.

Skills
Web development
2

What it does and how to use it

A skill that teaches Claude Code to do web development tasks well. It is packaged knowledge the model uses whenever it is relevant.

Install the skill (command above).
In Claude Code, describe what you need - the skill turns on by itself when the context fits.
No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/js-min-max-loop && curl -fsSL https://doutorai.pt/data/lib/skills__js-min-max-loop.md -o .claude/skills/js-min-max-loop/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

---
title: Use Loop for Min/Max Instead of Sort
impact: LOW
impactDescription: O(n) instead of O(n log n)
tags: javascript, arrays, performance, sorting, algorithms
---

## Use Loop for Min/Max Instead of Sort

Finding the smallest or largest element only requires a single pass through the array. Sorting is wasteful and slower.

**Incorrect (O(n log n) - sort to find latest):**

```typescript
interface Project {
  id: string
  name: string
  updatedAt: number
}

function getLatestProject(projects: Project[]) {
  const sorted = [...projects].sort((a, b) => b.updatedAt - a.updatedAt)
  return so

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