# Snippetly — Code Snippet Library

> Snippetly is a platform for saving, organizing, and sharing code snippets. The public Code Snippet Library provides free, production-ready snippets across popular languages and frameworks.

## Library Index

- [Code Snippet Library](/library): Browse all 40+ free code snippets organized by language and category.

## JavaScript Snippets

- [Debounce Function](/library/debounce-function): Delay function execution until after a specified time. Useful for search inputs and resize events.
- [Throttle Function](/library/throttle-function): Limit function execution to once per interval. Useful for scroll handlers and rate limiting.
- [Deep Clone Object](/library/deep-clone): Create a deep copy of nested objects and arrays without reference issues.
- [Array Chunk](/library/array-chunk): Split large arrays into smaller chunks for pagination or batch processing.
- [Get Unique Array Values](/library/unique-array): Remove duplicate values from arrays using the Set data structure.
- [Sleep Function](/library/sleep-function): Pause async execution using Promise and setTimeout.
- [Format Number](/library/format-number): Format numbers with commas and locale-aware decimals using Intl.NumberFormat.
- [Local Storage Helper](/library/local-storage-helper): Type-safe localStorage wrapper with JSON serialization and error handling.

## React Snippets

- [useLocalStorage Hook](/library/use-local-storage): Sync React state with localStorage automatically.
- [useFetch Hook](/library/use-fetch): Data fetching hook with loading and error states.
- [useDebounce Hook](/library/use-debounce): Debounce a rapidly changing value inside a React component.
- [useOnClickOutside Hook](/library/use-click-outside): Detect clicks outside a referenced DOM element.
- [useWindowSize Hook](/library/use-window-size): Track browser window dimensions reactively.
- [useKeyPress Hook](/library/use-key-press): Listen for specific keyboard key presses.
- [usePrevious Hook](/library/use-previous): Access the previous value of any React state or prop.

## TypeScript Snippets

- [Generic Result Type](/library/result-type): Type-safe error handling with Ok/Err without throwing exceptions.
- [DeepPartial Utility Type](/library/deep-partial): Make all nested properties optional in TypeScript.
- [Discriminated Union](/library/discriminated-union): Type-safe state modelling with discriminated union types.
- [Type Guard Function](/library/type-guard): Runtime type checking with TypeScript type predicates.
- [Readonly Deep Utility](/library/readonly-deep): Recursively freeze an object to prevent mutations.
- [Enum-like Const Object](/library/const-enum): Enum alternative using const objects with as const assertion.

## CSS Snippets

- [CSS Custom Properties Theme](/library/css-variables-theme): Light and dark mode theme with CSS custom properties.
- [Responsive Typography Scale](/library/fluid-typography): Fluid font sizes using CSS clamp() across breakpoints.
- [CSS Grid Auto Layout](/library/css-grid-auto): Auto-fit responsive grid without media queries.
- [Smooth Scroll Animation](/library/smooth-scroll): Scroll-driven fade-in animations with IntersectionObserver and CSS.
- [CSS Loading Spinner](/library/css-spinner): Pure CSS animated loading spinner.
- [Glassmorphism Card](/library/glassmorphism): Frosted glass card effect using backdrop-filter.

## Node.js Snippets

- [Async File Read/Write](/library/async-file-operations): Promise-based file operations with Node.js fs/promises.
- [HTTP Request Helper](/library/http-request-helper): Lightweight fetch wrapper with timeout and error handling.
- [Environment Variable Validator](/library/env-validator): Validate required environment variables at startup.
- [Rate Limiter](/library/rate-limiter): In-memory token bucket rate limiter for APIs.
- [Logger Utility](/library/logger): Structured logger with log levels and timestamps.
- [Retry with Backoff](/library/retry-backoff): Retry failed async operations with exponential backoff.
- [Express Error Handler](/library/express-error-handler): Centralised error handling middleware for Express.js.

## Python Snippets

- [Read and Write Files Safely](/library/python-read-write-file): Safe Python file I/O using context managers and pathlib.
- [List Comprehensions](/library/python-list-comprehension): Concise list, dict, and set comprehensions with filtering.
- [Python Decorators](/library/python-decorators): Timer and retry decorators using functools.wraps.
- [Dataclasses](/library/python-dataclasses): Type-annotated data models with @dataclass and field defaults.
- [Context Managers](/library/python-context-manager): Class-based and generator-based context managers.

## Tailwind CSS Snippets

- [Responsive Navbar](/library/tailwind-responsive-navbar): Mobile-first navigation bar with hamburger menu using Alpine.js.
- [Card Component](/library/tailwind-card-component): Image card with badge and group hover effects.
- [Gradient Hero Section](/library/tailwind-gradient-hero): Landing page hero with gradient background and CTA buttons.
- [Pricing Table](/library/tailwind-pricing-table): Three-tier pricing table with highlighted popular plan.
- [Form Inputs](/library/tailwind-form-input): Text input, select, textarea, and error state components.

## Utility Snippets

- [Validate Email](/library/validate-email): Email validation with regex, MX record check pattern, and error messages.
- [Currency Formatter](/library/currency-formatter): Format monetary values with locale and currency symbol.
- [Slugify String](/library/slugify): Convert strings to URL-safe slugs.
- [Parse Query String](/library/parse-query-string): Parse and stringify URL query parameters.
- [Generate UUID](/library/generate-uuid): Generate RFC-4122 compliant UUIDs without dependencies.
- [Truncate Text](/library/truncate-text): Truncate strings by character count or word count with ellipsis.

## About Snippetly

Snippetly is a tool for developers to save, organize, and share code snippets with their teams. The public library is a free resource — all snippets are production-ready and copy-paste friendly.

- Website: https://snippetly.xyz
- Library: https://snippetly.xyz/library
- Contact: Available via the website