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nuller is a simple library for providing default values for null or undefined object property access, created for/at the OSS workshop :lion:
Script to check Bash scripts for empty or undefined Bash variables
Common types, type guards and checkers.
Shows how to call linkfire API endpoints for various workflows
Filters array entries that are null or undefined.
Jinja2 extension that never undefined
JavaScript Package for checking is variable empty,undefined or null
Test if a value is an array-like object containing only JavaScript primitives.
Test if a value is undefined.
A TypeScript isomorphic adaptation of Java's Optional.
Safe navigation using ES2015 Proxies
Clean type handling for the Go programming language with undefinable and nullable generic types.
Eslint rule to prevent undefined declaration in favor of optional chaining (?) operator in Typescript
Statically generated webpage.
repositorio para o vídeo gravado para o youtube sobre variáveis javascript, var, let e const e escopo
Nano framework which defines Haskell's undefined in Swift.
Guard against null or undefined values
This is an alternative to the lodash's merge function, but it does overwrite values with undefined
A simple library to determine whether the object is null-like or not.
Is a simple npm package to check if sent arguments are null or undefined.
Namaste JavaScript notes provide a comprehensive guide for mastering JavaScript. Covering key concepts, syntax, and practical applications, it's an invaluable resource for developers seeking JavaScript proficiency.
A set of useful utility functions for JavaScript run-time type checking and inspection.
Functions that check if argument is, or is not, undefined or null