Comprehensive Collection of Regular Expressions for Data Validation
An extensive compilation of regular expressions covering numeric, character, email, URL, phone, ID, password, date, IP, and other validation patterns, complete with examples and explanations, providing developers a ready reference for implementing robust input validation across various programming contexts.
This article presents a comprehensive set of regular expressions for validating a wide range of data types commonly required in software development.
It includes patterns for numeric values (integers, decimals, ranges), character strings (Chinese characters, alphanumeric, underscores), special formats such as email addresses, domain names, URLs, phone numbers, identification numbers, passwords, dates, IP addresses, postal codes, and more.
Each pattern is accompanied by a clear description and a ready-to-use regular expression, illustrated with examples like ^[0-9]{4}$ for a four‑digit number or ^[A-Za-z0-9_]{5,16}$ for a typical username.
The collection serves as a practical reference for developers implementing robust input validation in backend or frontend code.
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