JavaScript utilities with respect to emerging standard
A set of efficient utilities that extend the use of JSON (streaming, estimate size, NDJSON/JSONL, etc.)
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`
Get the default network gateway, cross-platform.
ECMAScript extensions and shims
Range header field string parser
Timers extensions
Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.
TypeScript definitions for range-parser
Utility for normalizing a numeric range, with a wrapping function useful for polar coordinates
Extract useful information from font files
Replaces a file extension with another one.
A CEL evaluator for ECMAScript
MCP Apps SDK — Enable MCP servers to display interactive user interfaces in conversational clients.
YouTube video downloader in pure javascript.
Range data type parser and serializer for PostgreSQL
Common get-version-range-type shared between changeset packages
Get the file extension and MIME type from a file
A tool to open and run web extensions
Find the greatest satisfied semver range from an array of ranges.
Extensions to Node.js child_process module
This library creates a new Response, given a source Response and a Range header value.
for adding, subtracting, and indexing discontinuous ranges of numbers
m3u8 parser
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