How can I chain promises in TypeScript?

How can I chain promises in TypeScript?

You can chain promises in TypeScript using the .then() method. Each .then() returns a new promise.

Can you give me an example of chaining promises?

Sure! Here's a simple example:

function fetchData(): Promise<string> {
    return new Promise((resolve) => {
        setTimeout(() => resolve('Data fetched!'), 1000);
    });
}

fetchData()
    .then(data => {
        console.log(data);
        return 'Next step';
    })
    .then(next => console.log(next));

What if one of the promises fails?

You can handle errors using .catch(). For example:

fetchData()
    .then(data => {
        console.log(data);
        throw new Error('Something went wrong!');
    })
    .catch(error => console.error(error));