Return the first argument that is `!= null`

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

A fully fledged audio module created for music apps

ensures all required parameters are not null, or throws a useful error like 'phone is required'

Container object used to contain not-null objects

A runtime assertion for preserving not-null and not-undefined invariants

Small module that checks if the given object has given properties and are not null or undefined