JavaScript - Dates & Utilities

Overview

Estimated time: 10–15 minutes

JavaScript provides built-in objects and methods for working with dates, times, and common utility tasks.

Learning Objectives

• Create and format dates using the Date object.
• Use utility functions for common programming tasks.

Prerequisites

• JavaScript - Unicode & Encodings

Working with Dates

const now = new Date();
console.log(now.toISOString());

Utility Functions

function clamp(val, min, max) {
  return Math.max(min, Math.min(max, val));
}

Common Pitfalls

• Date parsing/formatting can be inconsistent across browsers.

Summary

Mastering dates and utilities is essential for real-world JavaScript development.