Typescript Types

Operations

1. ??

const fetchedUserData = {
    id: 'u1',
    name: 'Max',
    job: {title: 'CEO', description: 'My own company'}
};

console.log(fetchedUserData?.job?.title);

const userInput = undefined;

const storedData = userInput ?? 'DEFAULT';

console.log(storedData);

1. ! as

const userInputElement = document.getElementById('user-input')! as HTMLInputElement;
userInputElement.value = '111';