class

问题 I am trying to write a Typescript API service. For the service I need a way to check that the method exists when a function such as get is called. I realise I can do like get(endpoint: string) { this.handleRequest(); } post(endpoint: string, data: any) { this.handleRequest(); } But I don't particularly want to do that are the top of every method so I didn't know if there was a way to listen within the constructor of the Typescript class for a call of a child function. It seems a little far

问题 I have a rather simple collection of many (too many..) classes in a specific namespace. They have no nested classes, but the do have linked ones. Example (simplified): namespace ConsoleApp1.Methods { public class Method100Response201 { public Method100Response201() { super = new Method100Response201_1(); } public string aName { get; set; } public string R1_201 { get; set; } = "R1_201"; public Method100Response201_1 super { get; set; } public void DoSpecialThing() { Console.WriteLine (

问题 Here I am trying to include a class file into another class file like <?php include './connection.php'; class header_class extends connection { } and in connection.php <?php class connection { //put your code here } both the files are in same folder called classes now when i am trying to extend connection class in header_class . Its give an fatal error. ( ! ) Fatal error: Class 'Connection' not found in D:\Projects\wamp\www\Session-6\classes\header.php on line 4 Call Stack # Time Memory

问题 I'm trying to develop some interfaces for linear algebra functions, because the world needs another linear algebra library. The (possibly bad) idea is to be able to specify Vector or Matrix for some higher level functions and have it just work, as long as the dimensions are correct. I ran into some problems doing this with the Vector interface, but I discovered using this as a type and it resolved my issues (maybe I'm doing a bad thing here). I tried doing this in the Matrix interface, but

问题 I am a beginner at Python and I'm new to Stack Exchange. I'm trying to write a program that has 5 turtles moving within a square. I've got code that does what I want, but it's tedious and I'd like to initialize all my turtles using classes instead of doing it one by one. I just want them to start out at random coordinates and with a random heading. The problems with my code: Only one turtle is shown on screen. Two are defined in the code below. The turtle's heading and coordinates aren't

问题 I am debugging another person's package (currently unmaintained) that runs in the Atom editor. At one point, this package uses vm.runInContext to define a class object, using code equivalent to the following: const vm = require('vm') myClass = vm.runInNewContext('class x {}', {}, 'file') I think this code runs in node.js , but I don't really know all the details of Atom's javascript environment. At any rate, I'm pretty sure it's running in ES6 or later. I believe that when this package was

问题 Ok, so in my program I tried making buttons and assigning different methods for each button pressed. But I came into a problem where I also want the user to use his keyboard and assign buttons pressed on keyboard into same buttons on screen. Yet firstly, I tried if button is pressed by mouse or keyboard yet the method doesn't allow KeyEvents in 'EventArgs' (which is fine by me), so I created different method and made a boolean variable so that if in that separate method the key is pressed,

问题 Class Example: $(document).ready(function(){ var $ = function(id) { return document.getElementById(id); } class someClass { constructor() { ... } someMethod() { ... } } ... // rest of examples within this scope }); So far I am able to create an instance of the class object when the window loads and then calling a method of that class on a button click event while also binding this : var obj = new someClass() $('startButton').onclick = obj.someMethod.bind(obj) All works fine and well until I

问题 I have been trying to modify the code from this Tutorial so that after a bullet strikes an enemy the player.png image is shown at position x = 60 and y = 48 . But the image does not remain fixed , it just appears and disappears. I don't know exactly where the wrong or missing element is in the code but I suspect that one of the causes is some misuse of my part of the for loop within the draw_reaction function. My player.png image My MWE code: import pygame import random # Define some colors

问题 Is it possible to construct a List<Object> wherein the elements are uninstantiated classes, with the intention of getting one of the list elements and running a static method from that class or instantiating a new instance of that class? Also, how might one do this and how inadvisable is it (and why)? To add some context: I want to make an application which generates a randomized city, placing buildings in the city, where each building is an instance of one of the many building classes, each