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17,352 PointsAlternate solution using Promises instead of async/await
Using Async await
// Find a record
const toyStory = await Movie.findByPk(1);
// Delete a record
await toyStory.destroy();
Using Promise (with catch clause)
// Find and Delete a record
Movie.findByPk(5).then(result => result.destroy())
.catch(()=>{console.log("An error occurred in destroying the record.")});
My (newbie) understanding is that async-await is newer and supersedes Promises, but it's good to be familiar with both. I noticed a key difference here is that with async-await -> when a Primary Key record doesn't exist in the database, the program will crash. However with Promises, the .catch()
clause can prevent crashing.
1 Answer
Steven Parker
231,269 PointsThe async/await syntax is used with promises, it does not superseded them. But you're right about it being newer, promises were released first and required complicated chaining to achieve the same functionality that async/await now simplifies.