type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.

Determine the variable type.

Variable type

Detect JavaScript variable type.

Function returns variable type

Extra assertions on top of node's assert module

An implementation of WHATWG AbortController interface.

Simple utility library with variable type checking functions.

Determine the variable type.

Determine type of a variable

dead-simple optimistic async helper

Install a transform to `require.extensions` that always runs last, even if additional extensions are added later.

The option type, also known as the maybe type, for JavaScript

process.nextTick but always with args

Allows users to use generators in order to write common functions that can be both sync or async.

A noop logger that conforms to the Log4j interface for modules to stub out internal logging

Run a function exactly one time

ECMAScript AST recursive visitor

Use node's fs.realpath, but fall back to the JS implementation if the native one fails

A typescript Map structure like ES6 Map