The guideline is to avoid async void except when used in an event handler, so using async void in an event handler is OK. That said, for unit testing reasons I often like to factor out the logic of all async void methods. E.g., public async Task OnFormLoadAsync(object sender, EventArgs e) { await Task.Delay(2000); … … Read more
It turns out that the following works: Task<x> DoStuff(…., CancellationToken ct = default(CancellationToken)) …or: Task<x> DoStuff(…., CancellationToken ct = default) // C# 7.1 and later which, according to the documentation, is interpreted the same as CancellationToken.None: You can also use the C# default(CancellationToken) statement to create an empty cancellation token.
I know this is a question that’s already answered but the chosen answer doesn’t really solve the OP’s problem, so I thought I would post this. This solution gives you the aggregate exception (i.e. all the exceptions that were thrown by the various tasks) and doesn’t block (workflow is still asynchronous). async Task Main() { … Read more
Classic sync using Classic using calls the Dispose() method of an object implementing the IDisposable interface. using var disposable = new Disposable(); // Do Something… Is equivalent to IDisposable disposable = new Disposable(); try { // Do Something… } finally { disposable.Dispose(); } New async await using The new await using calls and await the … Read more
You cannot make a truly custom asynchronous function. You’ll eventually have to leverage on a technology provided natively, such as: setInterval setTimeout requestAnimationFrame XMLHttpRequest WebSocket Worker Some HTML5 APIs such as the File API, Web Database API Technologies that support onload … many others In fact, for the animation jQuery uses setInterval.
Calling close and shutdown have two different effects on the underlying socket. The first thing to point out is that the socket is a resource in the underlying OS and multiple processes can have a handle for the same underlying socket. When you call close it decrements the handle count by one and if the … Read more
Synchronous vs Asynchronous Synchronous execution usually refers to code executing in sequence. Asynchronous execution refers to execution that doesn’t run in the sequence it appears in the code. In the following example, the synchronous operation causes the alerts to fire in sequence. In the async operation, while alert(2) appears to execute second, it doesn’t. Synchronous: … Read more
It’s pretty straightforward with some simple rules: Whenever you create a promise in a then, return it – any promise you don’t return will not be waited for outside. Whenever you create multiple promises, .all them – that way it waits for all the promises and no error from any of them are silenced. Whenever … Read more
I’ve used the queuing approach, and it works well as you can defer that processing until your server load is idle, letting you manage your load quite effectively if you can partition off “tasks which aren’t urgent” easily. Rolling your own isn’t too tricky, here’s a few other options to check out: GearMan – this … Read more
You have to add your jquery script to your chrome-extension project and to the background section of your manifest.json like this : “background”: { “scripts”: [“thirdParty/jquery-2.0.3.js”, “background.js”] } If you need jquery in a content_scripts, you have to add it in the manifest too: “content_scripts”: [ { “matches”:[“http://website*”], “js”:[“thirdParty/jquery.1.10.2.min.js”, “script.js”], “css”: [“css/style.css”], “run_at”: “document_end” } … Read more