What you are really asking is how to implement a function after a promise is done. If so, then making the function an Async function will do the trick. For information on async-await check out Async/await. 2 solved Async-Await or Promises with JavaScript functions [closed]
Taking a guess here but it looks like you want to promis-ify the Voice.onSpeechResults callback. Have your MicButton function return a promise that resolves with the result you want export const MicButton = () => new Promise((resolve, reject) => { Voice.start(‘en-US’) Voice.onSpeechResults = (res) => { resolve(res.value[0]) } Voice.onSpeechError = reject }).finally(() => { Voice.removeAllListeners() … Read more
First I would explain that nobody should ever rely on precise timing between two separate promise chains. They run independently of one another and as soon as you insert any real world asynchronous operations in either of those promise chains (which all real-world programming would contain), then the timing of each chain is entirely unpredictable … Read more
I want to know if there is any way at all to use the data from a resolved promise in ‘normal’ synchronous code There isn’t a way to write completely synchronous code when handling asynchronous responses. Once any operation is asynchronous, you have to deal with the response using asynchronous techniques and cannot program with … Read more
Here is a way to do it, where there is no need for an interval timer. It uses a queue of functions to call when the next HTTP response arrives (which makes the number of pending requests to come below 5): var pending = 0; var queue = []; function get(url){ return new Promise (function(resolve,reject){ … Read more
Promises are a programming pattern for dealing with asynchronous operations. The pattern could be applied to other languages, but they are most commonly encountered in JS libraries (like jQuery and WinJS). Kraig Brockschmidt has a really good blog post about how they work (in general) and in WinJS here: http://blogs.msdn.com/b/windowsappdev/archive/2013/06/11/all-about-promises-for-windows-store-apps-written-in-javascript.aspx I’ve written a blog post … Read more
I have a list of promises: [pr1, pr2, pr3, pr4, pr5] If you have a list of 5 promises you already have 5 things processing in parallel. There is no way to stop it since you have already triggered the processes by creating the promises. If you want to process only two of them at … Read more
The result of Promise.new() is just a reference to the promise. If you want to list all promises in an application, you need to get a reference to them when they’re created. Promise.all() is not related to getting all active promises in an application, it’s used for something else. There is no magical way to … Read more
I (very quickly, so it probably has errors) rewrote this using async.forEachOfSeries to iterate over your attachments. I used async.forEachOf for the database writes as I don’t see a need for them to be in series. var async = require(‘async’); if (issue.fields.attachment != ”) { async.forEachOfSeries(issue.fields.attachment,function(attachment,r,callback){ if (typeof issue.fields.attachment[r].content != “undefined”) { var url = … Read more