async-await

问题 I'm staring my UI5 with the following bootstrapping in index.js : sap.ui.define([ "sap/m/Shell", "sap/ui/core/ComponentContainer" ], (Core, Shell, ComponentContainer) => { "use strict"; new Shell("", { app: new ComponentContainer("", { height: "100%", name: "webapp" }), appWidthLimited: false }).placeAt("content"); }); According to the UI5 documentation: Static dependencies are loaded in the dependency declaration array of the sap.ui.define call. These dependencies are always loaded in

问题 I'm staring my UI5 with the following bootstrapping in index.js : sap.ui.define([ "sap/m/Shell", "sap/ui/core/ComponentContainer" ], (Core, Shell, ComponentContainer) => { "use strict"; new Shell("", { app: new ComponentContainer("", { height: "100%", name: "webapp" }), appWidthLimited: false }).placeAt("content"); }); According to the UI5 documentation: Static dependencies are loaded in the dependency declaration array of the sap.ui.define call. These dependencies are always loaded in

问题 As the title says, I have to following function: public async IAsyncEnumerable<Job> GetByPipeline(int pipelineId, [EnumeratorCancellation] CancellationToken cancellationToken = default) { await foreach (var job in context.Jobs.Where(job => job.Pipeline.Id == pipelineId) .AsAsyncEnumerable() .WithCancellation(cancellationToken) .ConfigureAwait(false)) { yield return job; } } I have trouble wrapping my head around where the cancellation token is going, and a nagging feeling that I am using it

问题 I'm trying to figure out a way to get a collection of documents along with their subcollection data. For example, my tree is... -locations -{locationId} -historic -april -airTemp: 12.4 -displayOrder: 4 -august -airTemp: 14.5 -displayOrder: 9 -december -airTemp: 13.5 -displayOrder: 12 etc.. ...where locationId is a document and historic is the subcollection with monthly documents in it. I know how to get the top level collection items and store it into an array but I want to add their

问题 How can I add a setTimeout to my async await function call? I have request = await getProduct(productids[i]); where const getProduct = async productid => { return requestPromise(url + productid); }; I've tried request = await setTimeout((getProduct(productids[i])), 5000); and got the error TypeError: "callback" argument must be a function which makes sense. The request is inside of a loop which is making me hit the rate limit on an api call. exports.getProducts = async (req, res) => { let

问题 How can I add a setTimeout to my async await function call? I have request = await getProduct(productids[i]); where const getProduct = async productid => { return requestPromise(url + productid); }; I've tried request = await setTimeout((getProduct(productids[i])), 5000); and got the error TypeError: "callback" argument must be a function which makes sense. The request is inside of a loop which is making me hit the rate limit on an api call. exports.getProducts = async (req, res) => { let

问题 I have a custom awaitable type and the problem is that the continuation resumes on a different thread, which causes problems in UIs such as WinForms/WPF/MVC/etc: private MyAwaitable awaitable; private async void buttonStart_Click(object sender, EventArgs e) { awaitable = new MyAwaitable(false); progressBar1.Visible = true; // A regular Task can marshal the execution back to the UI thread // Here ConfigureAwait is not available and I don't know how to control the flow var result = await

问题 Updated , I've now tried explaining the behavior I'm seeing, but it'd still be great to have an answer from a credible source about the unhandledRejection behavor. I've also started a discussion thread on Reddit. Why do I get an unhandledRejection event (for "error f1") in the following code? That's unexpected, because I handle both rejections in the finally section of main . I'm seeing the same behavior in Node (v14.13.1) and Chrome (v86.0.4240.75): window.addEventListener(

问题 Updated , I've now tried explaining the behavior I'm seeing, but it'd still be great to have an answer from a credible source about the unhandledRejection behavor. I've also started a discussion thread on Reddit. Why do I get an unhandledRejection event (for "error f1") in the following code? That's unexpected, because I handle both rejections in the finally section of main . I'm seeing the same behavior in Node (v14.13.1) and Chrome (v86.0.4240.75): window.addEventListener(

问题 I'm running puppeteer on express/node/ubuntu as follow: var puppeteer = require('puppeteer'); var express = require('express'); var router = express.Router(); /* GET home page. */ router.get('/', function(req, res, next) { (async () => { headless = true; const browser = await puppeteer.launch({headless: true, args:['--no-sandbox']}); const page = await browser.newPage(); url = req.query.url; await page.goto(url); let bodyHTML = await page.evaluate(() => document.body.innerHTML); res.send