Questions tagged [promise]
"Promises" are a particular tactic for deferred computing, suitable for several styles of concurrency: thread and event loop concurrency for local computation, and both synchronous and asynchronous remote messaging.
250 questions
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Timezone-based VPN-detection
I use the following snippet with my browser homepage to detect whether or not I have my VPN connection turned on. If the IP timezone is different from the browser timezone, then it is most likely the ...
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A class that will manage a thread and execute tasks (e.g., SQL queries) within it
I am interested in creating a class that manages a thread and executes SQL queries sequentially within it. The queries would be submitted from various parts of the program, and the results would be ...
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Axios wrapper used with API requests
I have created Axios wrapper following SOLID principles. Is there any feedback on improving it's structure in a more cleaner and better way?
axiosconfig.ts
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Full Promise implementation
I have attempted to implement the native Promise object provided by the browser in JavaScript. The code is pretty easy to understand. It supports most of the promise functionalities, such as chaining, ...
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Using async / await with dynamic import() for ES6 modules
I am experimenting with the best way to standardise my dynamic import() expressions when importing javascript modules.
import() ...
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Handling pure in browser HTTP request in Service Worker fetch event
I was suggested by @Bergi on StackOverflow that Async Promise constructors are any pattern.
The argument behind this is that async Promise swallows the errors. In my case, I have try..catch so I'm not ...
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Idempotent JavaScript script loader
I wrote an idempotent script loader (for the browser), where the same script won't be loaded more than once.
scriptLoader.js:
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await user input with async/await syntax
for clarity: moved here from stackoverflow after being pointed to Code Review being the better place for this question
I love async/await and Promises since I got my hands on them. And I might be ...
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Check if images are loaded (ES6 Promises)
I wrote a small function that checks if an image or multiple images are loaded. For that purpose, I decided to use ES6 promises, but I'm not really sure if my way of handling errors is the best way.
<...
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Stack Exchange review queue notifications
A couple of days ago a user in chat asked us to spend more time in the queues. Kick starting my desire to get notifications for new items in the queues.
Reviewing the queues has been something I've ...
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React Native login, sign up and sign out using Firebase project
I have built a basic app which uses firebase for authentication.
The app is pretty simple.
Sign up the user to firebase using email and password.
Sign in the user
Sign out the user
Also, I have ...
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Wrap async method in a way that the method is invoked only once for all calls that occur while the first of them is not resolved
Imagine we have a function that returns a Promise, ie call a GET endpoint of an api and return the response data.
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JavaScript proxy for better stack traces from external libraries
I've been using the excellent pg-promise library for a few years now, but my primary irk with it is that the stack traces are sometimes unhelpful. For example, the following test will fail (currently ...
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NodeJS promise loop through all files in directory
I am trying to re-organise my mp3 collection based on its id3 meta data into folders based on the artist. I'm new to nodeJs and more importantly promises. I was hoping I could get some feedback on my ...
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Basic node login routes for authentication system
I am building a basic authentication system with a node backend and wonder whether I am using the try-catch block excessively. I have this example controller:
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