Instanceof Packages

Check if a value is an `Error` instance

A simple package which returns true when object is type of some specific interface or type.

Make assertions and perform checks for types and literal values

A controller that writes extended classes' tag names into the "instanceof" attribute.

Is value a function check

A seemless way for organizing multi inheritance.

Simple library to check for many types.

Simple Object type/name checks

Variable type comparison

@lceihen/demo-utils

@lceihen/mysql-utils

Function argument validation for humans

Prototypes as classes

Type check values. This is a fork of sindresorhus/is, but with CommonJS support.

Additional ESLint rules.

Utility library simplifying type detection and comparison.

Better Type Checking

Type check values

`modern-errors` plugin to execute class-specific logic

Additional ESLint rules.