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Perform simple javascript validation like isEmpty and isDefined in a consistent manner.
A library to have a generic typescript definition for object presence.
Various utility functions such as isNonEmptyString, isNumber, isNull, isDefined etc.
Simple utility function for checking isDefined for complex objects with long property paths
Isomorphic, functional type-checking for Javascript
Utilities for working with undefined properties
Essential utilities for TypeScript projects
Check if an identifier is defined
A collection of assertions for test and production code alike.
An isDefined shortcut for underscore
TypeScript predicates and assertions library
Typescript utilities
NestJS DTO decorators.
fluent assert for validation of invariants before assignment
Shared useful utils and types
A simple set of functions that return a boolean.
Vue 3 type guard checking if ref value is not null/undefined
Like Underscore, but with zero callbacks and really more fun
Typescript typeguards
A collection of utility function helpers