---
author: "Umesh Malik"
canonical: "https://umesh-malik.com/resources"
description: "Curated collection of AI engineering, GenAI, and software development resources, tools, libraries, blogs, and reusable code snippets that I use and recommend."
title: "Resources & Snippets - Umesh Malik"
tokens: 1351
generator: "scripts/generate-page-markdown.mjs"
---

# Resources & Snippets

Tools, libraries, blogs, and code snippets I find useful. A living collection that grows as I discover new things.

Showing 15 resources across all topics.

## Resources

[

### MDN Web Docs 

The definitive reference for HTML, CSS, and JavaScript. I check this almost daily.

ReferenceJavaScriptCSS

](https://developer.mozilla.org)[

### TypeScript Handbook 

Official TypeScript documentation. The best starting point for learning TypeScript properly.

TypeScriptDocumentation

](https://www.typescriptlang.org/docs/handbook)[

### Svelte Tutorial 

Interactive tutorial that teaches Svelte from basics to advanced patterns. How I learned Svelte.

SvelteTutorial

](https://learn.svelte.dev)[

### TailwindCSS 

Utility-first CSS framework. The documentation doubles as an excellent CSS reference.

CSSFramework

](https://tailwindcss.com)[

### Vite 

Next-generation build tool. Fast HMR and sensible defaults for modern frontend projects.

Build ToolJavaScript

](https://vitejs.dev)[

### Turborepo 

High-performance monorepo build system. Useful for managing multiple packages in large projects.

MonorepoBuild Tool

](https://turbo.build)[

### Zod 

TypeScript-first schema validation. Replaced hand-written validators in most of my projects.

TypeScriptValidation

](https://zod.dev)[

### TanStack Query 

Async state management for React. Handles caching, background updates, and stale data elegantly.

ReactState Management

](https://tanstack.com/query)[

### Framer Motion 

Production-ready animation library for React. Makes complex animations approachable.

ReactAnimation

](https://www.framer.com/motion)[

### Josh W. Comeau 

Deep-dive articles on CSS, React, and web development with interactive examples.

CSSReactFrontend

](https://www.joshwcomeau.com)[

### Kent C. Dodds 

Practical articles on testing, React patterns, and software quality.

TestingReact

](https://kentcdodds.com/blog)[

### Dan Abramov — overreacted.io 

Thoughtful posts on React internals, JavaScript, and programming philosophy.

ReactJavaScript

](https://overreacted.io)[

### Syntax.fm 

Web development podcast covering frontend, backend, and everything in between. Great for commutes.

Web DevelopmentGeneral

](https://syntax.fm)[

### JS Party 

Weekly podcast about the JavaScript ecosystem, frameworks, and the web platform.

JavaScriptCommunity

](https://changelog.com/jsparty)[

### The Changelog 

Conversations with open-source maintainers and software leaders. Broader perspective beyond frontend.

Open SourceGeneral

](https://changelog.com/podcast)

## Code Snippets

Reusable patterns I reach for frequently. Copy, adapt, and use in your own projects.

### Debounce Hook (React)

A reusable React hook that debounces a value. Useful for search inputs and API calls.

```
import { useState, useEffect } from 'react';

function useDebounce<T>(value: T, delay: number): T {
  const [debouncedValue, setDebouncedValue] = useState(value);

  useEffect(() => {
    const timer = setTimeout(() => setDebouncedValue(value), delay);
    return () => clearTimeout(timer);
  }, [value, delay]);

  return debouncedValue;
}

// Usage:
// const debouncedSearch = useDebounce(searchTerm, 300);
```

### Type-Safe Event Emitter

A generic event emitter with full TypeScript type safety for event names and payloads.

```
type EventMap = Record<string, unknown>;
type EventHandler<T = unknown> = (payload: T) => void;

class TypedEmitter<Events extends EventMap> {
  private handlers = new Map<keyof Events, Set<EventHandler<any>>>();

  on<K extends keyof Events>(event: K, handler: EventHandler<Events[K]>) {
    if (!this.handlers.has(event)) this.handlers.set(event, new Set());
    this.handlers.get(event)!.add(handler);
    return () => this.handlers.get(event)?.delete(handler);
  }

  emit<K extends keyof Events>(event: K, payload: Events[K]) {
    this.handlers.get(event)?.forEach((handler) => handler(payload));
  }
}

// Usage:
// type AppEvents = { 'user:login': { id: string }; 'theme:change': 'light' | 'dark' };
// const emitter = new TypedEmitter<AppEvents>();
```

### CSS Grid Auto-Fill Layout

A responsive grid that automatically fills available space without media queries.

```
.auto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: 1.5rem;
}

/* Usage: apply .auto-grid to a container and its children
   will automatically arrange in a responsive grid.
   No media queries needed — the grid adapts to available space. */
```

### Intersection Observer Hook (React)

A hook for detecting when an element enters the viewport. Great for lazy loading and animations.

```
import { useEffect, useRef, useState } from 'react';

function useIntersectionObserver(options?: IntersectionObserverInit) {
  const ref = useRef<HTMLElement>(null);
  const [isIntersecting, setIsIntersecting] = useState(false);

  useEffect(() => {
    const element = ref.current;
    if (!element) return;

    const observer = new IntersectionObserver(([entry]) => {
      setIsIntersecting(entry.isIntersecting);
    }, options);

    observer.observe(element);
    return () => observer.disconnect();
  }, [options]);

  return { ref, isIntersecting };
}

// Usage:
// const { ref, isIntersecting } = useIntersectionObserver({ threshold: 0.1 });
// <div ref={ref}>{isIntersecting && <ExpensiveComponent />}</div>
```