Questions

What exceptions should be thrown for invalid or unexpected parameters in .NET?

What types of exceptions should be thrown for invalid or unexpected parameters in .NET? When would I choose one instead of another? ## Follow-up: Which exception would you use if you have a func...

21 Apr at 20:31

What's the difference between an object initializer and a constructor?

What are the differences between the two and when would you use an "object initializer" over a "constructor" and vice-versa? I'm working with C#, if that matters. Also, is the object initializer met...

C# DLL config file

Im trying to add an app.config file to my DLL, but all attempts have failed. According to MusicGenesis in '[Putting configuration information in a DLL](https://stackoverflow.com/questions/161763/put...

23 May at 12:26

Passing an enum value as command parameter from XAML

I want to pass an enum value as command parameter in WPF, using something like this: ``` <Button x:Name="uxSearchButton" Command="{Binding Path=SearchMembersCommand}" CommandParameter=...

17 May at 12:46

How can I run a program from a batch file without leaving the console open after the program starts?

For the moment my batch file look like this: ``` myprogram.exe param1 ``` The program starts but the DOS Window remains open. How can I close it?

4 May at 11:5

Tips for using Vim as a Java IDE?

I'm addicted to Vim, it's now my de facto way of editing text files. Being that it's mainly a text editor and not an IDE, has anyone got tricks for me to make it easier when developing Java apps? So...

9 Feb at 01:55

How can I use an array of function pointers?

How should I use array of function pointers in C? How can I initialize them?

21 May at 21:43

How do I create a copy of an object in PHP?

It appears that in PHP objects are passed by reference. Even assignment operators do not appear to be creating a copy of the Object. Here's a simple, contrived proof: ``` <?php class A { public...

12 Jul at 07:52

Delete all but the most recent X files in bash

Is there a simple way, in a pretty standard UNIX environment with bash, to run a command to delete all but the most recent X files from a directory? To give a bit more of a concrete example, imagine ...

25 Aug at 08:37

Execute script after specific delay using JavaScript

Is there any JavaScript method similar to the jQuery `delay()` or `wait()` (to delay the execution of a script for a specific amount of time)?

12 Jan at 03:22

ASP.NET Core 6 how to access Configuration during startup

In earlier versions, we had Startup.cs class and we get configuration object as follows in the file. ``` public class Startup { private readonly IHostEnvironment environment; private readonl...

26 Nov at 09:56

docker.errors.DockerException: Error while fetching server API version

I want to install this module but there is something wrong when I try the step `docker-compose build ...` I tried to update the Docker version and restart Docker many times. But it didn't work. ``` gi...

8 Feb at 01:48

Sort a list of objects in Flutter (Dart) by property value

How to sort a list of objects by the alphabetical order of one of its properties (Not the name but the actual value the property holds)?

8 Dec at 02:22

Cannot resolve scoped service from root provider .Net Core 2

When I try to run my app I get the error ``` InvalidOperationException: Cannot resolve 'API.Domain.Data.Repositories.IEmailRepository' from root provider because it requires scoped service 'API.Doma...

3 Feb at 00:41

forEach() in React JSX does not output any HTML

I have a object that I want to output via React: ``` question = { text: "Is this a good question?", answers: [ "Yes", "No", "I don't know" ] } ``` and my react compon...

26 Feb at 13:34

Sharing secret across namespaces

Is there a way to share secrets across namespaces in Kubernetes? My use case is: I have the same private registry for all my namespaces and I want to avoid creating the same secret for each.

9 Jun at 06:34

Await is a reserved word error inside async function

I am struggling to figure out the issue with the following syntax: ``` export const sendVerificationEmail = async () => (dispatch) => { try { dispatch({ type: EMAIL_FETCHING, payload: tru...

17 Jul at 10:25

NSPhotoLibraryUsageDescription key must be present in Info.plist to use camera roll

Recently I started to get this error: > NSPhotoLibraryUsageDescription key must be present in Info.plist to use camera roll. I am using React Native to build my app (I am not familiar with ios na...

18 Nov at 10:42

CUSTOM_ELEMENTS_SCHEMA added to NgModule.schemas still showing Error

I just upgraded from Angular 2 rc4 to rc6 and having troubles doing so. I see the following error on my console: ``` Unhandled Promise rejection: Template parse errors: 'cl-header' is not a known ...

13 Oct at 16:14

git ignore .env files not working

I have a laravel project. In the root directory are these 4 files: > .env .env.example .env.local .env.staging I have a .gitignore file, and I'm listing these 4 files in the .gitignore, one after an...

16 Aug at 19:39

Is Google Play Store supported in avd emulators?

After googling quite a bit I am unable to find the answer to this question. Is google play store officially support in avd emulators. I know it was once stopped , then I hear that it was brought bac...

Cannot redeclare block scoped variable

I'm building a node app, and inside each file in .js used to doing this to require in various packages. ``` let co = require("co"); ``` But getting [](https://i.stack.imgur.com/Dgrz2.png) etc. S...

19 Apr at 23:9

Javascript ES6 export const vs export let

Let's say I have a variable that I want to export. What's the difference between ``` export const a = 1; ``` vs ``` export let a = 1; ``` I understand the difference between `const` and `let`, b...

Change tab bar item selected color in a storyboard

I want to change my tab bar items to be pink when selected instead of the default blue. How can i accomplish this using the storyboard editor in Xcode 6? Here are my current setting which are not wo...

13 Jun at 11:31

How to convert an ISO date to the date format yyyy-mm-dd?

How can I get a date having the format yyyy-mm-dd from an [ISO 8601](http://en.wikipedia.org/wiki/ISO_8601) date? My  8601 date is ``` 2013-03-10T02:00:00Z ``` How can I get the following? ``` 2...

16 Jun at 12:21