@t0bst4r/optional v1.0.5

@t0bst4r/optional

Add java-like optional functionality to your application.

Installation and Usage

Installation via npm

npm install @t0bst4r/optional

Usage

Import the package to your project files:

import { Optional } from "@t0bst4r/optional";

Create an optional

To create a new optional use Optional.Of(yourValue) or Optional.OfNullable(yourValue). You could also create an empty optional with Optional.Empty().

Methods

• map your optional to an other typed value
• check if the optional isPresent()
• get() the value of the optional - throws an exception if the optional is not present
• if the optional is Empty
  • get a fallback value with orElse(fallbackValue)
  • get a fallback value using a supplier with orElseGet(fallbackSupplier)
  • get another optional with or(anotherFallbackOptional)
  • get another optional using a supplier with orGet(fallbackSupplier)
• execute a piece of code if the optional is present with ifPresent(callback)