Creating a JavaScript promise from scratch, Part 7: Unhandled rejection tracking Rejected promises without rejection handlers can hide important errors, which is why both Node.js and browsers have a way of tracking them. Posted at January 19, 2021 by Nicholas C. Zakas Tags: JavaScript, ...
Creating a JavaScript promise from scratch, Part 4: Promise.resolve() and Promise.reject() Promises created with Promise.resolve() and Promise.reject() go through a different process than when created with a constructor. Posted at October 13, 2020 by Nicholas C. Zakas Tags: JavaScript, ...
Q promises provide a fail shorthand for then when you are only interested in handling the error:var outputPromise = getInputPromise() .fail(function (error) { });If you are writing JavaScript for modern engines only or using CoffeeScript, you may use catch instead of fail....
Q promises provide a fail shorthand for then when you are only interested in handling the error:var outputPromise = getInputPromise() .fail(function (error) { });If you are writing JavaScript for modern engines only or using CoffeeScript, you may use catch instead of fail....
Are there any suggestions for resolving this issue? Alternatively, is it possible to accomplish this task using only Javascript, using different methods? Solution 1: This initial effort shows promise. You have a clear plan and understanding of the task at hand. However, there are some concerns ...
Promise((resolve, reject) => { cloudinary.uploader .upload(file) .then((result) => { resolve(result.secure_url); }) .catch((error) => { reject(error); }); }); }; // Function to add the overlay to the base image const addOverlayToImage = (img) => { return new Promise((...
therunInstancesmethod of the AWS.EC2 client class, including the name of the key pair to assign and the ID of the AMI to run. To call therunInstancesmethod, create a promise for invoking an Amazon EC2 service object, passing the parameters. Then handle the response in the promise callback...
Node.js JavaScript Code // Create a new collection called 'my_collection' var promise = db.createCollection('my_collection'); // Create a new collection or reuse existing one var promise = db.createCollection('my_collection', { ReuseExistingObject: true } );...
abstractclassBackendApiRequest<RequestBody,// JSON objectResponseBody,// JSON objectPathPieces// variable parts of the URL on the backend>{post(requestBody:RequestBody,pathPieces:PathPieces):Promise<ResponseBody>{// code that calls the backend and returns the response}} ...
export async function storeImage(mediaURL) { return new Promise((resolve) => { fetch(mediaURL) .then(async (res) => { res.body.pipe(fs.createWriteStream(imagePath)); res.body.on('end', () => resolve(imagePath)); }).catch((error) => { console.error(error); resolve(undefined);...