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A modern, zero-dependency cache for JavaScript/TypeScript with a pluggable eviction policy: W-TinyLFU admission (Count-Min Sketch + SLRU) that beats plain LRU on skewed workloads. TypeScript-first.

The highest performance constant complexity cache algorithm.

Offers getProxyForUrl to get the proxy URL for a URL, respecting the *_PROXY (e.g. HTTP_PROXY) and NO_PROXY environment variables.

Get East Asian Width from a character.

A tiny library for packing 2D rectangles (for sprite layouts)

A small module to write JSON files.

Protobuf format for Apollo usage reporting

CLI for PostCSS

A plugin that provides a composable API for giving elements a fixed aspect ratio.

Node.js CORS middleware

A list of [disposable email domains](http://en.wikipedia.org/wiki/Disposable_email_address) like `mailinator.com`. You can use it to detect or block disposable accounts in your signup process. Exact domain matches are found in [index.json](https://github.

RFC9562 UUIDs

Convert cron expressions into human readable descriptions

a geographic extent object

Detect global variables in JavaScript using acorn

Copy file globs, watching for changes.

A drop-in replacement for new RegExp() with types

An efficient and visually pleasing implementation of SSAO with an emphasis on temporal stability and artist control.

return the first argument that is `!== undefined`