v0.24.0 - Integer Validation & Enhanced Consistency

🎉 What's New

New Function: isInteger()

Validates if a string represents an integer value (whole number without decimals).

isInteger('42')      // true
isInteger('-17')     // true
isInteger('3.14')    // false - rejects decimals
isInteger('42.0')    // false - rejects .0 suffix
isInteger('  42  ')  // true - automatic trimming

Key Features:

• Handles positive and negative integers
• Rejects decimal numbers (key difference from isNumeric)
• Full branded type system integration (IntegerString)
• CLI support: nano-string isInteger "42"
• Bundle size: 120 bytes gzipped
• 80+ test scenarios

Use Cases:

• Age validation
• Pagination parameters (page, limit, offset)
• Database ID validation
• E-commerce quantities
• Form input processing

Enhanced Whitespace Handling

Updated 6 validation functions to consistently trim leading/trailing whitespace:

• isASCII, isAlphanumeric, isEmail, isHexColor, isUUID, isUrl

This quality-of-life improvement handles common user input patterns like " [email protected] ".

Code Consistency Improvements

• Standardized variable naming across all validation functions
• All functions now use const trimmed = str.trim() pattern
• More explicit code that avoids parameter mutation
• Better maintainability

📊 Stats

• Function count: 51 → 52 utilities
• Bundle size: 9.05 KB ESM / 9.69 KB CJS (within limits)
• Test coverage: 100% maintained (1465 tests passing)

📦 Installation

npm install [email protected]

Full changelog: https://github.com/Zheruel/nano-string-utils/blob/main/CHANGELOG.md#0240---2025-11-07