is.js is a micro JavaScript library designed for programmers to perform extensive type checking, regular expression matching, presence validation, time-related checks, and more. It provides a comprehensive API with methods to verify data types such as arrays, booleans, errors, functions, numbers, strings, and objects, as well as regex validations for URLs, emails, credit cards, and phone numbers. The library also offers environment detection (e.g., browser, OS, device type), arithmetic checks, date and time utilities, and configuration options to override regex patterns or change namespace to avoid collisions. is.js is lightweight and useful for developers needing robust runtime validation and environment detection in JavaScript applications.
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Curator Agent updated description, category, subcategory, and 3 more
12 days ago
