methods

问题 The code below is used to note some methods to run in particular circumstances so they can be called using a simpler syntax. var callbacks = {alter: SPZ.sequenceEditor.saveAndLoadPuzzle, copy: SPZ.sequenceEditor.saveAsCopyAndLoadPuzzle, justSave:SPZ.sequenceEditor.saveAndLoadPuzzle}; But the code keeps returning an empty object. I've checked with console.log that the methods are defined. I've also tried changing the names, invoking an empty object and then adding the properties as eg

问题 In my problem, I have a function, say optim , that takes as one of its arguments another function, say objfunc , along with some other arguments: optim(objfunc, args...) I wish to call this function within another function, let's call it run_expt , and pass a value for objfunc that I have set to be a specific method of some other function myfunc . So specifically, say if myfunc took four arguments: myfunc(a, b, c, d) and I wanted a specific method for it to pass to optim , which fixed the

问题 i'm working on a project in android studio but when i want to use toString() method it shows : cannot resolve method 'toString()'.please check the image.enter image description here etLPassword = findViewById(R.id.etLPassword); String password = etLPassword.getText().toString(); tostring() appears with red color 来源： https://stackoverflow.com/questions/59119381/android-studio-tostring-method-is-not-found

问题 So let's say there's a URL http://example.com/index.html/hello/hi where "hello" and "hi" are parameters. How would you use javascript and forms method POST to extract the parameters? 回答1: Your subject is a little bit vague. However, I thought I'd made an example of possibilities. http://jsfiddle.net/tive/LjbPq/ The idea is to split the URL for each character /, in whatever way you received it. var parts = document.URL.split("/"); Since split() returns an array (zero based), you need to

问题 I'm trying to setup some PHP methods that are callable in instantiated and static contexts. What are some good ways to do this? For example I want to be able to do: Foo::bar($item); foo($item)->bar(); I could setup two separate classes and have each function modify the thisArg and delegate to the other, but it seems like there's got to be a better way. The only way I could think of to do it with only one class would be something like this: function foo($item = null) { return $item instanceof

问题 My application is a soundboard app, but there is a lot of sounds in categories. Each category is running in a different activity. So, the first activity call the others when the user select the category. The app have more than 200 sounds and I started to make a SQLite DB so the user can select the favorite sounds and show them in a separate activity. It is already working but the code is in the activity, when I put the sqlite code in a method inside another class (if I want to change

问题 I want to implement a collection, whose items need to be tested for emptiness. In case of a reference type, one would test for being null. For value types, one has to implement empty testing, and probably choose a specific value that represents emptyness. My generic collection of T should be usable for both value and reference type values (meaning that Coll<MyCalss> and Coll<int> should both be possible). But I have to test reference and value types differently. Wouldn't it be nice to have an

问题 I am using Ruby on Rails 3.0.9 and I would like to pass some variables to an helper_method stated in my controller. class ArticlesController < ApplicationController helper_method :method_name private def method_name # Here I would like to state\use something like 'def method_name(var1, var2)' ... end end Is it possible? If so, how should I code and how can I use that? 回答1: To write a function you do this: def method_name (param1,param2) to call a function you do this: method_name (arg1, arg2)

问题 I have a Problem with some of my Methods and I think, a WaitHandle is the solution. I create a Incident through a API to a Ticketsystem. private void create_Incident(string computer_idn, string swidn_choice, string swName_choice, string CI_Number, String windows_user) { string msg_id = "" + computer_idn + "_" + swidn_choice + ""; string username = "BISS"; hajas211ilt3.ILTISAPI api = new hajas211ilt3.ILTISAPI(); api.BeginInsertIncident(username, "", msg_id, "", "", "2857", "BISS - Software

问题 I've been told that when you pass an Object to a method, it's passed "by value". I made a little test to examine it: Point p = new Point(1, 1); Circle c = new Circle(p); p.x = 999; Console.WriteLine(c.p.x); the code above prints "999", but I thought the object is copied to the method I've been told that if you're not using "ref" (or "out") the method get the value of the object. can someone make it clear to me? thanks, socksocket 回答1: Assuming Point is declared as class, not p itself is