How can I dismiss the on screen keyboard?

I am collecting user input with a `TextFormField` and when the user presses a `FloatingActionButton` indicating they are done, I want to dismiss the on screen keyboard. How do I make the keyboard go ...

26 Dec at 09:26

No restricted globals

I am using React and Redux to develop a webapp and when I started up my project I got this: ``` Line 13: Unexpected use of 'location' no-restricted-globals Search for the keywords to learn more ab...

Lambda including if...elif...else

I want to apply a lambda function to a DataFrame column using if...elif...else within the lambda function. The df and the code are something like: ``` df=pd.DataFrame({"one":[1,2,3,4,5],"two":[6,7,8,9...

21 Nov at 02:32

Generating a PDF file from React Components

I have been building a polling application. People are able to create their polls and get data regarding the question(s) they ask. I would like to add the functionality to let the users download the r...

18 Sep at 13:19

SPA client accessing ServiceStack session

I am developing a SPA in Angular 4 backed by ServiceStack based web services and wanted to enable the SPA to check if the user is already authenticated using the Redis cache client implemented in the ...

8 Jul at 15:42

Android Room Database: How to handle Arraylist in an Entity?

I just implemented Room for offline data saving. But in an Entity class, I am getting the following error: ``` Error:(27, 30) error: Cannot figure out how to save this field into database. You can con...

17 Dec at 04:58

How can I make Bootstrap 4 columns have a height of 100%?

how can I make a column take up 100% height of the browser w bootstrap 4? See the following: [https://codepen.io/johnpickly/pen/dRqxjV](https://codepen.io/johnpickly/pen/dRqxjV) Note the yellow div,...

Querying into a complex object with Dapper

I have a Customer class with the following properties: ``` public int Id { get; set; } public string Name { get; set; } public int AddressId { get; set; } public Address Address { get; set; } ``` M...

22 Jan at 09:15

Finding all cycles/enclosed shapes in a 2D grid

I have an "infinite" 2D grid and I want to detect closed/complete "structures" - areas of any shape which are enclosed on all sides. However, I need to identify each individual closed circuit - includ...

11 Jul at 00:53

flutter remove back button on appbar

I am wondering, if anyone knows of a way to remove the back button that shows up on the `appBar` in a flutter app when you use `Navigator.pushNamed` to go to another page. The reason I do not want it ...

25 Dec at 03:32

VS code right click menu new class c#

I'm currently following some tutorial I bought which refers to 2 options called "New C# class / New C# Interface", while I'm only seeing "New file." I'm new to VSCODE and installed only C# from OmniS...

7 Jul at 20:30

C# 7:How can I deconstruct an object into a single value using a tuple?

One of the nice new features of C# 7 is the possibility to define deconstructors for classes and assign the deconstructed values directly to a value tuple. However, in the case that the object is de...

7 Jul at 16:44

How do I use ServiceStack.Text in my web api project

I am new to ServiceStack.Text and finding it hard how to use it in my project. I did a nuget install but how do I add it to my formatters collection so it uses that by default? I am using Asp.Net Cor...

How to get am pm from the date time string using moment js

I have a string as `Mon 03-Jul-2017, 11:00 AM/PM` and I have to convert this into a string like `11:00 AM/PM` using moment js. The problem here is that I am unable to get `AM` or `PM` from the date t...

7 Jul at 13:24

If condition inside of map() React

I have a `map()`function that needs to display views based on a condition. I've looked at the React documentation on how to write conditions and this is how you can write a condition: ``` {if (logged...

7 Jul at 11:39

StringBuilder and string equality check

I am trying this sample of code and `OpTest` when `System.Console.WriteLine(s == t);` it returns `false`. Can somebody explain this? ``` public static void OpTest<T>(T s, T t) where T : class { ...

7 Jul at 07:25

Getting "Cannot evaluate a security function" when using conditional breakpoints and in immediate window

When developing .NET Core 2.0 applications, I'm having issues with conditional breakpoints, watch evaluations, and immediate window evaluations. I'm receiving the following error: > `modifiers.GroupB...

5 Aug at 17:2

How to specify output bindings of Azure Function from Visual studio 2017 preview 2?

In Azure portal, one can easily configure the output bindings of an Azure function, from the 'Integrate' page of that function. These settings Eventually go into the function.json. [](https://i.stac...

Message "the term 'ng' is not recognized as the name of a cmdlet"

Today, while working through some basic AngularJS introduction, I ran into a problem. I opened PowerShell to get going on the project. NPM worked. I was able to install Angular using: ``` npm install ...

How to start Spyder IDE on Windows

I downloaded spyder using the `pip install spyder` in my windows 10 32-bit operating system, but i dont see any desktop icons or exe files to start running the IDE. I downloaded spyder 3, any my py...

24 Jul at 14:8

Unable to infer schema when loading Parquet file

``` response = "mi_or_chd_5" outcome = sqlc.sql("""select eid,{response} as response from outcomes where {response} IS NOT NULL""".format(response=response)) outcome.write.parquet(response, mode="ove...

20 Jul at 16:46

What is the replacement for TestContext.DataRow["MyColumnName"]

Using MSTest in a .Net Core Unit test project. I am attempting to use a csv datasource to provide the data for a test method. Previously, I would use something like below in a .Net Framework test pro...

6 Jul at 15:59

Pip error: Microsoft Visual C++ 14.0 is required

I just ran the following command: ``` pip install -U steem ``` and the installation worked well until it failed to install `pycrypto`. Afterwards I did the ``` pip install cryptography ``` command b...

Why are structs so much faster than classes for this specific case?

I have three cases to test the relative performance of classes, classes with inheritence and structs. These are to be used for tight loops so performance counts. Dot products are used as part of many...

10 Jul at 07:17

Get element height with Vuejs

I want to get the height of a div in order to make the height of another div matching it. I used the method clientHeight, but It doesn't return me the good value (smaller value). Actually, It seems to...

10 Sep at 05:19