Undefined Packages

Better handle empty value issues in javascript objects.

For projects that may or may not run on a browser, like websites with SSR, sets all browser global variables like `window` or `document` as eventually undefined for better type-proofing

A library that replaces `null` type to `undefined` type.

Undefined or Null Checker.

Convert undefined properties of an object to null and back again.

Guard against null and undefined values

Remove undefined from json object or array

Converts null in an object to undefined.

Quantifiers of nullable types like as Array.prototype every/some

`nullish-math` is a lightweight TypeScript package that provides basic math operations with support for `null` and `undefined` values and an immutable, chainable API. It is useful when working with numeric data that may contain nullish values, as it ensur

Designate sections in your code. An alternative to comments!

A utility function that filters out null and undefined values from RxJS streams or arrays.

Preload images when given element show in viewport.

Rustlike option- and result-types for better null- and error-handling.

A TypeScript isomorphic adaptation of Java's Optional.

Remove recursively all key-value pairs where value is undefined

Tries to import a module. Ignores any error that occurs.

Next JavaScript Object Notation

Clean up the empty properties of an object and its nested objects. You can also remove or customize the properties of your object.

Replace nullable object's properties with optional