Give me a string and I'll tell you if it's a valid npm package name

Push an array of items into an array, while being robust against prototype modification

`Array.prototype.concat`, but made safe by ignoring Symbol.isConcatSpreadable

Give a regex, get a robust predicate function that tests it against a string.

ESLint plugin for sorting various data such as objects, imports, types, enums, JSX props, etc.

ESLint rules for controlling where and how mutation is used.

A CSS parser, transformer, and minifier written in Rust

Safer Node.js Buffer API

detect possibly catastrophic, exponential-time regular expressions

A flexible way to handle safe area, also works on Android and web.

Enforce finance-safe calculations using BigNumber instead of native JavaScript arithmetic and Math functions.

Modern Buffer API polyfill without footguns

Fault-tolerant CSS parser for PostCSS

Flowtype linting rules for ESLint.

🐊Putout plugin for eslint config

Deterministic and safely JSON.stringify to quickly serialize JavaScript objects

Accessibility engine for automated Web UI testing

Simple functions shared among the sinon end user libraries

Types and related utilities for TypeScript

[Hypertune](https://www.hypertune.com/) is the most flexible platform for feature flags, A/B testing, analytics, and app configuration. Built with full end-to-end type safety, Git-style version control and local, synchronous, in-memory flag evaluation. Op