generator async control flow goodness

Implements performance.now (based on process.hrtime).

ASN.1 encoder and decoder

Efficient implementation of Levenshtein algorithm with locale-specific collator support.

Like JSON.stringify, but doesn't blow up on circular refs.

Like duplexer but using streams3

A basic but performant promise implementation

invariant

compute the closest common parent for file paths

borderless text tables with alignment

Port of jQuery.extend for node.js and the browser

ECMAScript parsing infrastructure for multipurpose analysis

Is this specifier a node.js core module?

Is this value a JS WeakRef? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Parses CSS inline style to JavaScript object (camelCased).

Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

the path module from node core for browsers

Returns true if an object was created by the `Object` constructor, or Object.create(null).

Determine if a value is an ES6 Symbol or not.

Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.