Date Utilities

This package provides simple JavaScript utility functions to:

• Check if a date string is a valid date (isValidDate)
• Determine if a date falls on a weekend (isWeekend)

Functions

isValidDate(dateString)

Returns true if the input string is a valid date in YYYY-MM-DD format, otherwise returns false.

Example:

isValidDate('2023-05-16'); // true
isValidDate('2023-02-30'); // false
isValidDate('invalid-date'); // false

isWeekend(dateString)

Returns true if the input string is a valid date and falls on a Saturday or Sunday, otherwise returns false.

Example:

isWeekend('2023-05-13'); // true (Saturday)
isWeekend('2023-05-14'); // true (Sunday)
isWeekend('2023-05-15'); // false (Monday)
isWeekend('invalid-date'); // false

Usage

1. Import or require the functions in your JavaScript project.
2. Call the functions with a date string in YYYY-MM-DD format.

Example:

const { isValidDate, isWeekend } = require('./index');

// Check if a date is valid
console.log(isValidDate('2023-05-16')); // true

// Check if a date is a weekend
console.log(isWeekend('2023-05-14')); // true

Requirements

• Node.js (for require syntax)
• No external dependencies required for these functions