The lodash method `_.once` exported as a module.

Extend an object with the properties of additional objects. node.js/javascript util.

Convert Windows backslash paths to slash paths

A drop-in replacement / proxy to Node.js path, replacing \\ with / for all results & adding file extension functions.

The lodash method `_.memoize` exported as a module.

The lodash method `_.isPlainObject` exported as a module.

Determine if an object is a Buffer

The lodash method `_.isString` exported as a module.

Get the first path that exists on disk of multiple paths

Easily get the CWD (current working directory) of a project based on package.json, optionally starting from a given path. (node.js/javascript util)

The lodash method `_.isInteger` exported as a module.

The directory used by npm for globally installed npm modules.

writable stream that concatenates strings or binary data and calls a callback with the result

Merge multiple streams into one stream in sequence or parallel.

Make your own error types!

Check if a path is in the current working directory

A lightweight cache for file metadata, ideal for processes that work on a specific set of files and only need to reprocess files that have changed since the last run

Serve directory listings

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

Promisify a callback-based function