es6-promise

I'm new to ES6 and Promise. I'm trying pdf.js to extract texts from all pages of a pdf file into a string array. And when extraction is done, I want to parse the array somehow. Say pdf file(passed via typedarray correctly) has 4 pages and my code is: let str = []; PDFJS.getDocument(typedarray).then(function(pdf) { for(let i = 1; i <= pdf.numPages; i++) { pdf.getPage(i).then(function(page) { page.getTextContent().then(function(textContent) { for(let j = 0; j < textContent.items.length; j++) { str.push(textContent.items[j].str); } parse(str); }); }); } }); It manages to work, but, of course, the

I'm trying to use babel to compile file that contains es6 promises. I have installed babel-cli, babel-preset-es2015, babel-plugin-es6-promise. My .babelrc config is: { "presets": ["es2015"], "plugins": ["es6-promise"] } I got compiled js file with require() inside, but i don't want to use require at all. Is there any possibility of using es6 promises today on frontend side without require js? Please provide any link to es6 promises implementation sample with babel (or even with babel + require because i can't get require js working as well) ps: Don't wan't to use webpack. Is there any

I am concerned about references I have seen to Parse using JQuery-compatible promises, as I have read that jQuery promises allow consumers to mutate the state of the promise . Is it possible to use another promise implementation that is known to be Promises/A+ compliant (e.g. the ECMAScript 6 implementation , or Bluebird ) with the Parse JavaScript SDK? Normally I would assume that this isn’t possible, but in v1.4.2 of the Parse JavaScript SDK, the implementation of Parse.Promise defines the property “_isPromisesAPlusCompliant” as false which is then checked in various functions within the

I'm using Express.js in my code with Node.js v7.3. In this I've created a User Router which forwards the requests to my User Controller . I'm using async/await inside the User Controller to do asynchronous calls. The problem is that IntelliJ gives me a warning saying that Promise returned from login() is ignored. The thing is I'm not even returning anything from the login() method. Here's the code - UserRouter.js router.post('/login', function (req, res, next) { userController.login(req, res); // I get the warning here }); UserController.js exports.login = async function (req, res) { try {

I am trying to intelligently handle the success/error responses from our API using fetch & ES6 promises. Here is how I need to handle response statuses: 204: has no json response, but need to treat as success 406: should redirect to sign in 422: has json for error message < 400 (but not 204): success, will have json >= 400 (but not 422): error, will not have json So, I am struggling with how to write this cleanly. I have some less than stellar code working right now that looks like this: fetch() .then(response => checkStatus(response)) .then(parseJSON) //will throw for the 204 .then(data =>

This question already has an answer here: How can I synchronously determine a JavaScript Promise's state? 19 answers I have this situation in which I would like to know what the status is of a promise. Below, the function start only calls someTest if it is not running anymore (Promise is not pending). The start function can be called many times, but if its called while the tests are still running, its not going to wait and returns just false class RunTest { start() { retVal = false; if (!this.promise) { this.promise = this.someTest(); retVal = true; } if ( /* if promise is resolved/rejected or