Typescript adapted Java Optional class.

The library barebone is generated with typescript-library-starter.

npm i @itfobos/ts-optional

Documentation is available here.

• Optional.ofNullable(someValue)
• Optional.of(nonNullableValue)
• Optional.empty()

  const entityUuid = Optional.of(response)
      .filter(resp => resp.isPresent)
      .map(responseToEntity)
      .map(entity => entity.uuid)
      .filter(isNotNullOrEmpty)
      .orElseGet(() => route.snapshot.queryParamMap.get('uuid') as string);

Automatically tested with Node versions:

• 8
• 10
• 11
• 12

To integrate with the CI:

• github personal access tokens should be generated.
  • Generated value should be defined in Travis as GH_TOKEN environment variable for master branch.
• npm account email should be defined as NPM_EMAIL environment variable for all branches.
• npm access tokens should be defined as NPM_TOKEN environment variable for all branches.