lezer-based JavaScript grammar
Types for testing TypeScript types.
Decorator-based property validation for classes.
Apply unified plugins conditionally
A regular expression to match all emoji-only symbols
Single API for Web Crypto API and Crypto Subtle working in Node.js, Browsers and other runtimes
Vega expression functions for Vega-Lite selections.
Secure, isolated expression evaluation runtime for n8n
Matches strings against configurable strings, globs, regular expressions, and/or functions
Error class for Octokit request errors
Create a regular expression from a regular expression string.
Extendable client for GitHub's REST & GraphQL APIs
Return a regular expression to parse a regular expression string.
check if an AST node is a MemberExpression, in general or a specific one
CEL definitions and test data
HTTP server mocking and expectations library for Node.js
ConditionalWrap conditionally wraps children with a wrapper component based on a boolean condition.
Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc
TypeScript definitions for koa-conditional-get
React Form Engine for O3
Log all requests and request errors
A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.
Validates the path expressions for the Amazon States Language
Make a regular expression time out if it takes too long to execute