Provides base styles and resets for stylesheets. Includes standardised utilities, such as visually hiding components or adding a consistent focus state.

The fastest NINO (UK National Insurance number) generator and validator. Generates and validates UK NI numbers to NIM39110 specifications on Gov.uk.

Takes a string, such as "1,2,3-10,5-8" and turns it into an array of numbers

A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript

Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`

Codecs for numbers of different sizes and endianness

JavaScript script to validate and parse Swedish personal identity numbers and corporate identity numbers. Written in TypeScript and includes types.

A module to create a set of unique numbers as fast as possible.

Read/write IEEE754 floating point numbers from/to a Buffer or array-like object

extended POSIX-style sprintf

Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.

BigNumber library used in ethers.js.

The RAW rational numbers library

JSON for humans and machines

traverse and transform objects by visiting every node on a recursive walk

Generate YouTube-like ids from numbers.

JSON parser and stringifier for custom numbers (e.g. BigInt)

Convert numbers to words in 135 locales with currency, ordinal, and BigInt support (TypeScript, ESM/CJS/UMD).

ELEN - Efficient Lexicographic Encoding of Numbers. For JavaScript.

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif