chriso/validator.js
Validator.js
validator.js is a JavaScript string validation and sanitization library. It provides a set of functions to verify that strings match specific patterns—such as emails, URLs, and alphanumeric formats—and a toolkit for cleaning and transforming text input to remove prohibited characters and trim whitespace.
The library includes utilities for standardizing email addresses by lowercasing domains and removing sub-addressing markers. It also functions as an HTML entity escaper, replacing special characters with entities to prevent the browser from executing text as code.
The project covers capabilities for user input validation, string data sanitization, and form data verification. These tools enable the normalization of data formats and the prevention of XSS attacks through character escaping.
Features
- String Validation and Normalization - Provides a comprehensive set of functions for validating string formats and normalizing text input.
- Input Validation - Validates if text entries match required formats like emails, URLs, or phone numbers before processing.
- Regular Expression Libraries - Checks string patterns against predefined regular expression rules to verify specific data formats.
- String Sanitizers - Provides utilities to identify and replace prohibited characters in strings to ensure data cleanliness.
- Input Sanitization - Cleans and validates user-provided string data to prevent injection attacks and ensure data safety.
- Character Escaping - Replaces special characters with HTML entities to prevent the browser from executing text as malicious code.
- Data Sanitization Utilities - Provides libraries to ensure incoming string data conforms to expected formats to prevent processing errors.
- XSS Protections - Prevents cross-site scripting by sanitizing and encoding user-provided strings.
- Escaping Utilities - Encodes dynamic text content by replacing special characters with HTML entities to prevent script injection.
- Text Transformation Functions - Offers stateless functions for modifying and transforming string content without side effects.
- Normalization - Standardizes email addresses by lowercasing domains and removing sub-addressing markers to create unique identifiers.
- Form Data Validation - Ensures web form submissions conform to specific patterns and business rules before saving to a database.
- Form Validation - String validation and sanitization library.
- JavaScript Utilities - Validation library for URLs, emails, and integers.
- Utility Libraries - String validation and sanitization utilities.
- Input Validation and Sanitization - Library for string validation and sanitization.
