Using null-conditional bool? in if statement
Why this code works: ``` if (list?.Any() == true) ``` but this code doesn't: ``` if (list?.Any()) ``` saying So why is it not a language feature making such an implicit conversion in the stat...
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- 13 Jan at 15:31
Cookie Authentication expiring too soon in ASP.NET Core
I have a ASP.NET Core 1.1.2 project in which I am using cookie authentication. I am having a problem where users are being prompted to log back in after being idle for an hour or less, and losing wor...
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- 19 Jan at 18:44
Async function without await in JavaScript
I have two functions, `a` and `b`, that are asynchronous, the former without `await` and the latter with `await`. They both log something to the console and return `undefined`. After calling either of...
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- 4 Sep at 05:35
Get duration of Video after upload
What is best way to get? I have a field where user will upload video. When you click the upload button, Video get uploaded. This work perfectly. I needed the duration of the video from physical pat...
ComosDB - MongoAPI - Document does not contain shard key
I am investigating using CosmosDB (previously DocumentDB), we currently use MongoDB so I am trying to use the MongoAPI for CosmosDB. I have created a CosmosDB deployment in azure, created a collectio...
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- 9 Aug at 10:10
Dbcontext IDbset properties are null when injected in ServiceStack IoC
I have registered my DbContext with the standard container in ServiceStack, the DbContext is injected into the service but strangely the `IDbSet` property is `null`, all the other properties are as ex...
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- 9 Aug at 08:58
Detecting when user scrolls to bottom of div with React js
I have a website with different sections. I am using segment.io to track different actions on the page. How can I detect if a user has scrolled to the bottom of a div? I have tried the following but i...
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- 9 Aug at 08:41
#include errors detected in vscode
I am using Visual Studio Code in my C++ project. I installed . I got the following error: > #include errors detected. Please update your includePath. IntelliSense features for this translation unit (...
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- 9 Aug at 06:50
Electron GUI with C# backend
I've got an existing project developed in C# using WinForms with custom controls for the GUI. We are amazed by the approach to write GUIs using HTML/CSS/JS and we are looking for the best way to wri...
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- 9 May at 01:49
How to set header and options in axios?
I use Axios to perform an HTTP post like this: ``` import axios from 'axios' params = {'HTTP_CONTENT_LANGUAGE': self.language} headers = {'header1': value} axios.post(url, params, headers) ``` Is t...
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- 4 Dec at 15:17
Timeout connecting to MSSQL Server 2017 when application running on Linux
I recently started up an ASP.NET Core Web-Application (WebAPI) using Entity Framework Core for database communications and everything was running really smooth as long as I was running the application...
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- 15 Jun at 16:4
ServiceStack - Adding CORS module twice?
I'm getting an exception when loading my ServiceStack Api project. Here's the ServiceStack output: ``` "startUpErrors": [{ "errorCode": "ArgumentException", "message": "An item with the same ...
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- 8 Aug at 19:4
Fine grained authorization in ServiceStack API
I am developing a large API surface using ServiceStack and I'm addressing the question of authorization. End-users need the ability to customize the rights given to various roles at the API request l...
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- 9 Aug at 09:22
React: Expected an assignment or function call and instead saw an expression
I am trying to fix this lint error at line `const def = (props) => {` in following sample code. ``` const propTypes = { prop1: PropTypes.string, prop2: PropTypes.string, prop3: PropTypes.string, prop...
What is the ASP.NET Core equivalent to HttpRequestMessage?
I found a [blog post](http://bizcoder.com/posting-raw-json-to-web-api) that shows how POSTed JSON can be received as a string. I want to know what's the new native way to do the same thing as the f...
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- 8 Aug at 12:28
Convert encrypt and decrypt C# function to PHP function
I would like to convert C# function to PHP function. Here is link to Function in C# : [https://stackoverflow.com/a/19441805/3581428](https://stackoverflow.com/a/19441805/3581428) ``` public static st...
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- 12 Aug at 05:11
JetBrains Rider - configure appsettings overrides
I am trying JetBrains Rider for my existing .NET Core project. In the project I have several `appsettings.json` overrides: - `appsettings.Development.json`- `appsettings.Test.json`- `appsettings.Stag...
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- 8 Aug at 11:59
Why does casting a struct to a similar class sort-of work?
I was exploring the limits of what I could accomplish in C# and I wrote a `ForceCast()` function to perform a brute-force cast without any type checks. I wrote a class called `Original` and a stru...
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- 8 Aug at 11:45
How to access external json file objects in vue.js app
How to access objects in the app I am new in this ``` import json from './json/data.json' ``` the JSON file is loaded and now I have to access the objects within it
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- 1 Jun at 13:10
Microsoft.SqlServer.Types in ASP NET Core
I'm trying to get the nuget package Microsoft.SqlServer.Types to work in ASP Core targeting full framework 461. I need to use the types SqlGeography and SqlHierarchyId. But when I run my test I get fo...
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- 8 Aug at 09:10
How can I use String substring in Swift 4? 'substring(to:)' is deprecated: Please use String slicing subscript with a 'partial range from' operator
I have the following simple code written in Swift 3: ``` let str = "Hello, playground" let index = str.index(of: ",")! let newStr = str.substring(to: index) ``` From Xcode 9 beta 5, I get the follo...
ServiceStack ORMLite LeftJoin confusion
I have a simple Vendor -> Product relation with the following setup (non-relevant properties elided): ``` public class Vendor { public Guid Id { get; set; } public bool IsDeleted { get; set; ...
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- 8 Aug at 09:6
Why am I getting "Permission denied" when activating a venv?
I just started a new python project and created a venv inside the project folder by running `virtualenv venv` in the terminal. However, when I run `venv/bin/activate` I get a permission denied error. ...
curl: (7) Failed to connect to port 80, and 443 - on one domain
This question shows research effort; it is useful and clear I have checked the cURL not working properly When I run the command `curl -I https://www.example.com/sitemap.xml` ``` curl: (7) Failed t...
EPplus To Insert X Number of Blank Rows
I have an instance where if a cell value is between 15 and 25 then I need to insert 10 blank rows, if the cell value is > 30 I need to insert 25 blank rows Rather than simply typing the same syntax ...