Coalesce for JavaScript. Returns the first value that is not undefined or null.

A micro-package to check if a value is not `undefined`. With proper TS typing!

Returns true if an answer to a prompt is not undefined, null, an empty object, empty array, or a string with zero length.

Check if the value is not undefined, null, empty string, NaN and Infinity.

Transform an Object that was transformed to return only the original properties recursively picked if they are not undefined.

**`defined`** returns `true` if the passed value is not `undefined`.

babel plugin that adds console.asserts which check that your imports are not undefined

Determine if a value is not `undefined` or `null`

[](https://www.npmjs.com/package/@smithy/types) [](https://www.npmjs.com/package/@smithy/types)

Parses set-cookie headers into objects

A simple function that asserts that a value is not undefined or null and returns the narrowed value

Determine if a value is not `undefined` or `null`

Safely get a dot-notated property within an object.

Recursively mkdir, like `mkdir -p`

Get the username of the current user

A lightweight utility to check if an object is not empty, not null, or not undefined.

Remove undefined properties and empty arrays from an object

Wrapper library for directory and file watching.

XMLHttpRequest for Node

Tiny DOM-element-creation utility