Built-in Functions Reference

I/O operations, type conversion, array/hash manipulation, string functions, math utilities, and file operations.

Execute shell commands with System.run() and backtick syntax. Returns async results with stdout, stderr, and exit_code.

HTTP client for GET, POST, PUT, PATCH, DELETE requests with JSON support and parallel requests.

SOAP web service calls, XML envelope wrapping, parsing, and XML escaping.

Parse and stringify JSON data.

Password hashing with Argon2, X25519 key exchange, Ed25519 signatures.

Create, verify, and decode JSON Web Tokens for authentication.

Regular expression matching, finding, replacing, splitting, and capturing.

Read, set, and manage environment variables with .env file support.

Date/time parsing, formatting, arithmetic, and comparison using Unix timestamps.

Schema-based validation with the V class and chainable validators.

Server-side session management for user state.

Test DSL with describe/it blocks, assertions, and factory functions.

Internationalization with translations, pluralization, and locale-aware formatting.

In-memory caching with TTL support for storing and retrieving data efficiently.

Sliding window rate limiter for API protection and abuse prevention.

Automatic security header injection including CSP, HSTS, X-Frame-Options, and more.

Multipart form parsing and file uploads to SolidB blob storage.

WebSocket messaging, presence tracking, and room management for real-time applications.