v0.2.0 - January 2, 2026

New Features

Text Module

• toTitleCase() - Smart capitalization handling Indonesian particles
• expandAbbreviation() - Expand common Indonesian abbreviations (Jl., Bpk., etc.)
• slugify() - URL-friendly slugs with Indonesian conjunction support (& -> dan)
• truncate() - Smart text truncation respecting word boundaries
• compareStrings() - Robust string comparison (case/accent/whitespace)
• similarity() - Calculate string similarity scores (Levenshtein)
• extractWords() - Word extraction preserving hyphenated words
• sanitize() - Text cleaning and normalization

Improvements

• Performance optimizations for text processing
• Comprehensive test coverage for text utilities

v0.1.0 - December 11, 2025

New Features

NIK Module

• validateNIK() - Validate Indonesian National Identity Number
• parseNIK() - Extract province, birth date, and gender information
• formatNIK() - Format NIK with separators
• maskNIK() - Mask NIK for privacy protection
• Support for all 38 Indonesian provinces
• Leap year validation
• Gender detection from birth date encoding

Phone Module

• validatePhoneNumber() - Validate Indonesian phone numbers
• formatPhoneNumber() - Format to international/national/e164 formats
• getOperator() - Detect mobile operator (Telkomsel, XL, Indosat, Smartfren, Axis)
• parsePhoneNumber() - Extract all phone information
• maskPhoneNumber() - Mask phone numbers for privacy
• cleanPhoneNumber() - Remove separators and normalize
• Support for 200+ Indonesian area codes
• Support for landline and mobile numbers

Currency Module

• formatRupiah() - Format numbers as Rupiah currency
• formatCompact() - Compact format with proper Indonesian grammar (1,5 juta)
• parseRupiah() - Parse formatted strings back to numbers
• toWords() - Convert numbers to Indonesian words (terbilang)
• roundToClean() - Round to clean amounts (ribu, ratus-ribu, juta)
• Support for decimal places and custom separators

Package

• TypeScript support with full type definitions
• Dual package support (ESM + CommonJS)
• Tree-shakeable exports
• Zero runtime dependencies
• 175+ test cases with 95%+ coverage