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A NestJS addon that provides validation pipes for the simple data types with the option of optionality. E.g. a ParseBoolOptionalPipe that validates & transforms @Query parameters that are then either true, false or undefined/null or throw an error.

NodeJS Require that let you handle module not found error without try/catch

Allows you to optionally include modules without surrounding everything with 'try/catch'

Optionals for JS - wrapper for possibly undefined values, inspired by Java Optional API

A browserify transform that allows optional dependencies in try..catch blocks

Allows you declare optionalPeerDependencies that can be satisfied by the top level module but ignored if they are not.

Extract the options and callback from a function's arguments easily

TypeScript recursive conversion between optional (partial) and undefined properties.

OpenAPI 3 and 3.1 schema generator and validator for Hono, itty-router and more!

Validate and format function arguments ( handles types and optionals)

Wrap and validate optional values

Codemod to migrate from Lodash get and logical and expressions to optional chaining

Optional (like Java) implementation in TypeScript

A js package to get a string of dynamic and conditional css classes

OpenAPI schema generator and validator for Cloudflare Workers

Enhanced optional chaining. Safe accessing properties of unknown object without whole validation.

A minimal optional package

Possible Function. Wraps what might be a function, with fallback behavior in case it’s not. Perfect for use in functions that accept optional callback arguments.

Overloads a function. Makes parameters optional.

Eliminate null/undefined errors in JS...and more!