asynchronous

Return multiple values from a C# asynchronous method

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After playing with the code I was able to figure it out. Here is the solution. public async Task DeleteSchoolTask(int schoolNumber, int taskDetailId) { var result = await GetTaskTypeAndId(taskDetailId); int taskId = result.Item1; string taskType = result.Item2; // step 1: delete attachment physically from server var fileService = new FileService(Logger, CurrentUser); var relativeFilePath = $”{schoolNumber}\\{Consts.RM_SCHOOL}\\{taskDetailId}”; … Read more

How to work with async code in Mongoose virtual properties?

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You can define a virtual method, for which you can define a callback. Using your example: TransactionSchema.method(‘getNotebook’, function(cb) { Notebook.findById(this.notebookId, function(err, notebook) { cb(notebook); }) }); And while the sole commenter appears to be one of those pedantic types, you also should not be afraid of embedding documents. Its one of mongos strong points from … Read more

VueJs child component props not updating instantly

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As far as I know, you should not need events to pass data from parent to child. All you need is, in the child component: props: [‘theProp’] And when using the child component in the parent: <child :theProp=”someData”></child> Now, wherever in the parent you change someData, the child component will react accordingly. You don’t need … Read more

How to accept an async function as an argument?

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async functions are effectively desugared as returning impl Future. Once you know that, it’s a matter of combining existing Rust techniques to accept a function / closure, resulting in a function with two generic types: use std::future::Future; async fn example<F, Fut>(f: F) where F: FnOnce(i32, i32) -> Fut, Fut: Future<Output = bool>, { f(1, 2).await; … Read more

How and When to Use @async and @sync in Julia

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According to the documentation under ?@async, “@async wraps an expression in a Task.” What this means is that for whatever falls within its scope, Julia will start this task running but then proceed to whatever comes next in the script without waiting for the task to complete. Thus, for instance, without the macro you will … Read more

Which VueJS lifecycle hook must Asynchronous HTTP requests be called in?

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TL;DR in the general (and safe) case, use created(). Vue’s initialization code is executed synchronously. Technically, any ASYNChronous code you run in beforeCreate(), created(), beforeMount() will only respond after all of those hooks finish. See demo: new Vue({ el: ‘#app’, beforeCreate() { setTimeout(() => { console.log(‘fastest asynchronous code ever’) }, 0); console.log(‘beforeCreate hook done’); }, … Read more

TaskCompletionSource – Trying to understand threadless async work

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TaskCompletionSource is used to create Task objects that don’t execute code. They’re used quite a bit by Microsoft’s new async APIs – any time there’s I/O-based asynchronous operations (or other non-CPU-based asynchronous operations, like a timeout). Also, any async Task method you write will use TCS to complete its returned Task. I have a blog … Read more