How can I clean (reset cache) of React Native using Expo. Not sure if it is cache issue

I am building a simple React Native app with create-react-native-app using only react-navigation and base-64(base 64 encode/decode) as dependencies. Over time starting the app became slower and now so...

24 Aug at 06:24

TypeError: Object(...) is not a function reactjs

I was trying to clean up this react component by extracting `fillCalendar()` from being a method of the component into it's own js file and importing it instead. Originally this.state.datesArray was s...

24 Aug at 04:26

How to integrate Python Code with C#.Net Core language?

Am trying to integrate python code in my .net core application for data analysis and some machine learning classification. How can I do this the best way? Note: I don't want to execute scripts with ...

10 Sep at 22:52

Consuming a custom stream (IEnumerable<T>)

I'm using a custom implementation of a `Stream` that will stream an `IEnumerable<T>` into a stream. I'm using this [EnumerableStream](https://gist.github.com/rdavisau/6e00bfe4a769ddc9338c) implementat...

26 Jul at 07:28

Possible .NET JIT call parameter lifetime bug?

I've been chasing down the cause of an intermittent crash in one of our .NET services due to an internal error in the .NET Runtime (exit code 0x80131506). The service in question doesn't perform any o...

24 Aug at 07:32

Getting general information about MongoDB collections with FSharp

Can I retrieve basic information about all collections in a `MongoDB` with `F#`? I have a `MongoDB` with > 450 collections. I can access the db with ``` open MongoDB.Bson open MongoDB.Driver open M...

23 Aug at 18:36

dotnet build - get error "could not return the default page '/index.html'"

try to generate my project into exe file, but get error: ``` indows DPAPI to encrypt keys at rest. Hosting environment: Production Content root path: C:....\currencyColution\correncyProject\bin\Debu...

20 Jun at 09:12

"Inspecting the state of an object in the debuggee of type System.Reflection.MethodBase is not supported in this context"

I don't know what this error means. I am using Visual Studio for Mac 7.5.0 Community version. I am using lazy loading in Entity Framework with ASP.NET Core. ``` public partial class AdminUser { ...

Excel as inlay frame in WPF has disabled ExcelWorksheet

I found a solution to setup Excel instance in WPF by using the [SetParent()](https://msdn.microsoft.com/en-us/library/windows/desktop/ms633541(v=vs.85).aspx) function of Windows. Problem is, that mo...

7 Sep at 11:54

C# Deserialize List<someobject> restfully with ServiceStack

I'm attempting to receive a POSTed List of POCO but I'm unable to deserialize either via the Swagger API or via Postman when submitting over the wire. I've serialized the object back out to confirm h...

23 Aug at 21:46

Type 'void' is not assignable to type '((event: MouseEvent<HTMLInputElement>) => void) | undefined'

``` import * as React from "react"; import "./App.css"; import PageTwo from "./components/PageTwo"; export interface IPropsk { data?: Array<Items>; fetchData?(value: string)...

23 Aug at 03:10

What is the difference between HashRouter and BrowserRouter in React?

I am new to programming which makes things slightly difficult for me to understand if I read the official docs. I was reading about [React Router 4 from here](https://medium.com/@djoepramono/react-rou...

7 May at 20:41

Visual Studio 15.8.1 not running MS unit tests

When I updated Visual Studio to the latest version, 1 of my test projects stopped running tests and outputted this message: > Test project {} does not reference any .NET NuGet adapter. Test discovery ...

23 Aug at 13:29

When should I await my asyncs?

We're currently refactoring sections of our project to be async up and down, yay! Due to our different understanding, me and a colleague (let's call him Jim), have differing opinions about how our as...

25 Aug at 07:19

Managed C++ with .NET Core 2.1

We have a library written in C++. To make it more compatible with our more modern .NET projects, we wrapped this C++ library in another .NET project. It works fine when referencing it from full .NET F...

14 Mar at 18:56

Jest 'TypeError: is not a function' in jest.mock

I'm writing a Jest mock, but I seem to have a problem when defining a mocked function outside of the mock itself. I have a class: ``` myClass.js class MyClass { constructor(name) { this.name = ...

Kubernetes Pod Warning: 1 node(s) had volume node affinity conflict

I try to set up Kubernetes cluster. I have Persistent Volume, Persistent Volume Claim and Storage class all set-up and running but when I wan to create pod from deployment, pod is created but it hangs...

22 Jan at 21:36

ASP.NET Core 2 - Missing content-type boundary

I'm trying to upload a file from a Angular client to my ASP.NET Core 2 WebAPI service. When I call the service, I get back an Internal Server Error. That's the error I'm getting: [](https://i.stack.im...

How can I check if two Span<T> intersect?

Consider the following function: ``` public static bool TryToDoStuff(ReadOnlySpan<byte> input, Span<byte> destination) { ... } ``` This function returns whether it was able to "do stuff" on `de...

21 Aug at 15:4

What is the Record type?

What does `Record<K, T>` mean in Typescript? Typescript 2.1 introduced the `Record` type, describing it in an example: > ``` // For every properties K of type T, transform it to U function mapObject<K...

29 Sep at 13:24

Using multiple variables in a for loop in Python

I am trying to get a deeper understanding to how `for` loops for different data types in Python. The simplest way of using a for loop an iterating over an array is as ``` for i in range(len(array)):...

20 Aug at 15:17

File POST returns error 415

I'm trying to make a file upload feature in my ASP.NET Core project. I receive this response when sending the POST call to my Web Api service: > Status Code: 415; Unsupported Media Type My Controlle...

kubectl get events only for a pod

When I run `kubectl -n abc-namespace describe pod my-pod-zl6m6`, I get a lot of information about the pod along with the Events in the end. Is there a way to output just the Events of the pod either...

20 Aug at 12:57

Unable to get local issuer certificate when using requests in python

here is my code ``` import requests; url='that website'; headers={ 'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8', 'Accept-Language':'zh-CN,zh;q=0...

2 Jul at 15:24

EF Core 2.1 GROUP BY and select first item in each group

Let's imaging a forum having a list of topics and posts in them. I want to get the list of topics and a title of last post (by date) for each topic. Is there a way to achieve this using EF Core (2.1)...

20 Aug at 09:16