Promise.finally(): Your Secret Weapon for Smoother Promise

When you have a promise, sometimes you want to ensure that some code always runs, regardless of the outcome of the promise. For example, you may want to hide a loading spinner or close a file connection whether the operation was successful or not. Before finally(), developers had to duplicate code in both the .then() and .catch() blocks. finally() eliminates that redundancy.

fetchData() .then((data) => { console.log('Data fetched successfully', data); }) .catch((error) => { console.error('Error fetching data', error); }) .finally(() => { hideLoadingSpinner(); // Runs no matter the result });