async-await

问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 10 months ago . Improve this question I am trying to execute a code asynchronously after a certain interval of time and want to check again only after I am done with the code execution to prevent overlapping. For that I am using the following variables and timer code. private System.Threading.Timer _timer; private

问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 10 months ago . Improve this question I am trying to execute a code asynchronously after a certain interval of time and want to check again only after I am done with the code execution to prevent overlapping. For that I am using the following variables and timer code. private System.Threading.Timer _timer; private

问题 In TypeScript, it is possible to check and warn the developer if they are calling an async function synchronously. For those that want less overhead and using node.js v9.0+, is it possible to have any linter give us a warning if we have something like this? async function foo() { return; } var result = foo(); // warning right here because there is no await The reason being is that it is not apparently if a function is returning a promise/is await unless we explicitly name it fooAsync , look

问题 I've been reading Eric Lippert's blog posts on Asynchrony in C# 5 (part 4 being particular relevant) and have watched Anders PDC10 talk on the subject and I'm unclear on how continuations from asynchronous methods are resumed in a single threaded context. Both sources discuss using asynchronous methods in a single threaded UI loop to improve responsiveness and in Anders' example he mentions that when an asynchronous task completes it's continuation is scheduled by the addition of a message to

问题 Out of curiosity, i want to know if there is any difference between the two. readFileSync: function parseFile(filePath) { let data = fs.readFileSync(filePath); } readFile with promisify: const readFilePromise = promisify(fs.readFile); async function parseFile(filePath) { let data = await readFilePromise(filePath); } If you need some context, im trying to read a bunch of files in a folder, replace a lot of values in each one, and write it again. I don`t know if there is any difference in using

问题 I need to send a request to multi-servers to see which server will response to my request and if any of them response, I will then further interact with this server. The simplest way is to send my request in sequence, something like this async function probing(servers) { for (const server of servers) { const result = await fetch(server) if (result.status == 200) { return result } } } But I hope to speed up the probing process so I change my code to async function probing(servers) { results =

问题 Does making a function async make it asynchronous? I started using async-await in place of promise chain. I did something like async function f(){ let r = await first(); let d = await sec(r); return d; } On calling this function I was able to see that all code happened asynchronously. But in some older article I read we can't create asynchronous function in javascript. So does making function async makes it asynchronous. 回答1: Does making a function async make it asynchronous? No, it makes it

问题 Does making a function async make it asynchronous? I started using async-await in place of promise chain. I did something like async function f(){ let r = await first(); let d = await sec(r); return d; } On calling this function I was able to see that all code happened asynchronously. But in some older article I read we can't create asynchronous function in javascript. So does making function async makes it asynchronous. 回答1: Does making a function async make it asynchronous? No, it makes it

问题 I have code: public async Task DeleteColorSchemeAsync(ColorScheme colorScheme) { if (colorScheme == null) throw new ArgumentNullException(nameof(colorScheme)); if (colorScheme.IsDefault) throw new SettingIsDefaultException(); _dbContext.ColorSchemes.Remove(colorScheme); await _dbContext.SaveChangesAsync(); } One code analyzer recommends me to split this method to 2 methods: Split this method into two, one handling parameters check and the other handling the asynchronous code Am I correct,

问题 I am overriding a method in a base class library. However, inside my overridden implementation I am using the new HttpClient which is all based on async methods. I therefore have to mark my method as async, which means that I need to change the return parameter of the method from string to Task. The compiler however gives an error: "The return type must be 'string' to match overridden member ...." public class BaseClass { public virtual string GetName() { ... } } public class MyClass :