ECMAScript extensions and shims
ECMAScript extensions and shims
JavaScript utilities with respect to emerging standard
Simple helper to extend object (even native) with es5-ext functions
Memoize/cache function results
A set of efficient utilities that extend the use of JSON (streaming, estimate size, NDJSON/JSONL, etc.)
ECMAScript 5 compatibility shims for legacy JavaScript engines
Timers extensions
Time duration utilities
Polyfill for Metadata Reflection API
Node's event emitter for all engines.
Replaces a file extension with another one.
ES6 spec-compliant RegExp.prototype.flags shim.
MCP Apps SDK — Enable MCP servers to display interactive user interfaces in conversational clients.
Web Streams, based on the WHATWG spec reference implementation
Bare bones Promises/A+ implementation
A tool to open and run web extensions
An ES2015 spec-compliant `Function.prototype.name` shim
Node.js's util module for all engines
JSON for Humans
regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.
m3u8 parser
Get the file extension and MIME type from a file
Extensions to Node.js child_process module
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