chaining

问题 Suppose I have a chain of function calls. def func1( pick, arg1, arg2 ): if pick == 1: do stuff with arg1 and arg2 elif pick == 2: do other stuff with arg1 and arg2 return stuff that got done def func2( pick, arg1, arg2, arg3 ): if pick == 1: do stuff with arg1 and arg2 and arg3 elif pick == 2: do other stuff with arg1 and arg2 and arg3 return stuff that got done def func3( pick, func2, arg3 ): if pick == 1: do stuff with funcs and arg3 elif pick == 2: do other stuff with funcs and arg3

问题 This question already has answers here : How do I access previous promise results in a .then() chain? (17 answers) Closed 3 years ago . I have a promise chain like so functionOne() .catch(errorHandlerOne) .then(functionTwo) // calls functionTwo(responseOne) .catch(errorHandlerTwo) .then(functionThree) // calls functionThree(responseTwo) .catch(errorHandlerThree) .finally(finalHandler) This might seem to be an obvious answer, but my question is this: I can access the responseOne in functionTwo

问题 I'm trying to chain Q promises without 'then', so eventually the chain would look like this: var foo = new Foo(); foo .method1() .method2() .method3(); How to implement foo's methods so each one is executed once the promise of the previous one is resolved? This question was marked as exact duplicate of this one but I'm trying to implement this using Q lib, not jQuery. 回答1: I'm not sure if you are going to gain anything with this. I suppose that you can do something like this: function Foo() {

问题 Previous post: Parse .then method and chaining | Syntax eludes me My original question was well answered by Nath. However I'm currently experiencing a TypeError which I am yet unable to resolve. TypeError message: TypeError: e is undefined ...arse.Object");return{__type:"Pointer",className:this.className,obj My current code (updated 2014-08-14 18:44): function harness(){ try{ console.log("harness function"); Parse.initialize("*key1*", "*key2*"); //Note: I do have the keys set properly var

问题 I want to parse a JSON file, then store its data in a variable and use it in different part of the code. I think for this purpose I should use $.when().done() . However, I I do not know how to pass data. The following code is not function but it shows what I am trying to achieve. var myJSON; function _parseJSON() { $.getJSON(settings.json_src).done(function(data) { return data; }); } $.when(_parseJSON()).done(function() { myJSON = data; }); function _cacheOptions() { console.log(myJSON.data);

问题 i've tried to get a return this from a callback, but i always get undefined. here is the snipped create: function(currentView, data){ var itsMe = this; this.thumbsWrapper = this.templates.wrapper().hide(); currentView.append(this.thumbsWrapper); this.thumbsWrapper.fadeIn("fast", function(){ return itsMe; }); }, var l = list().create(currentView); //need teh return that i can use chaining the var l is now undefined, if i use the fadeIn with a callback... if i dont use fadeIn with the callback

问题 For dispatching a single job I usually do one of these: Queue::push(new ExampleJob); or dispatch(new ExampleJob); https://lumen.laravel.com/docs/5.5/queues According to the Laravel Docs a certain Job chain, where one Job depends upon the previous is done like this: ExampleJob::withChain([ new OptimizePodcast, new ReleasePodcast ])->dispatch(); https://laravel.com/docs/5.5/queues#job-chaining However this does not workin in Lumen (similar problem here: How to dispatch a Job to a specific queue

问题 I want to achieve method chaining in Java. How can I achieve it? Also let me know when to use it. public class Dialog { public Dialog() { } public void setTitle(String title) { //Logic to set title in dialog } public void setMessage(String message) { //Logic to set message } public void setPositiveButton() { //Logic to send button } } I want to create method chaining that I can use as follows: new Dialog().setTitle("Title1").setMessage("sample message").setPositiveButton(); or like new Dialog

问题 I want to achieve method chaining in Java. How can I achieve it? Also let me know when to use it. public class Dialog { public Dialog() { } public void setTitle(String title) { //Logic to set title in dialog } public void setMessage(String message) { //Logic to set message } public void setPositiveButton() { //Logic to send button } } I want to create method chaining that I can use as follows: new Dialog().setTitle("Title1").setMessage("sample message").setPositiveButton(); or like new Dialog

问题 I would like to receive some help on the following code: fillDataAssociationsArray(DataAssociationIDS: string[]) { const promise = new Promise((resolve, reject) => { for (const id of DataAssociationIDS) { this.api.getDataAssociationByID(id).toPromise().then( data => { this.DataAssociations.push(data.body.entities.DATAASSOCIATIONS[0]); }); } resolve(); }); return promise;} In the code above I am trying to convert an array of DataAssociationIDS to DataAssociation objects, and than pushing them