Utility Functions

Explore commonly used utility libraries for date formatting, string manipulation, data processing, and more.

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Common Utility Categories

Date Utilities

Formatting, parsing, and time calculations

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String Manipulation

Sanitization, formatting, and validation

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Data Processing

Data normalization and transformation utilities

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Math Operations

Advanced mathematical and statistical functions

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Advanced Utility Concepts

Cross-Browser Compatibility

Utility functions with fallback implementations for older browsers

  • Polyfill examples
  • Feature detection techniques
  • Modernizr integration

Performance Optimization

Tips for making utility functions faster and more efficient

Caching Strategies

Examples with memoization patterns

Lazy Evaluation

Deferred and async execution

Pure Functions

Immutability examples

Batch Processing

Performance gains through batching

Utility Frameworks

Lodash

Collection, array, and function utility library

Ramda

Practical functional toolset for JavaScript

Date-Fns

Modular date-time utilities for modern JS

Underscore

Functional programming helper library

Code Examples

Deep Clone Function

Implementation:

function deepClone(obj) { return JSON.parse(JSON.stringify(obj)); }

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