An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible
`Object.defineProperty`, but not IE 8's broken one.
Determine if a function is a native generator function.
Is this specifier a node.js core module?
Returns an array of Typed Array names that are available in the current environment
Gets the description of a Symbol. Handles `Symbol()` vs `Symbol('')` properly when possible.
Determine if the current node version supports the `--preserve-symlinks` flag.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Fast, fault-tolerant, cross-platform, disk-based, data-agnostic, content-addressable cache.
Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
string representations of objects in node and the browser
A helper to optimistically set Symbol.toStringTag, when possible.
Is this value a JS Number object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Runs tests cleverly hidden in documentation
ES spec-like internal slots
Helper package to shim a method into `Array.prototype[Symbol.unscopables]`
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
Prettifier for Pino log lines
A robust, ES3 compatible, "has own property" predicate.
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
Determine if the JS environment has BigInt support.
Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag
remark plugin to support GFM (autolink literals, footnotes, strikethrough, tables, tasklists)