Questions

Why can't I inherit static classes?

I have several classes that do not really need any state. From the organizational point of view, I would like to put them into hierarchy. But it seems I can't declare inheritance for static classes. ...

21 Apr at 19:26

How to get the CPU Usage in C#?

I want to get the overall total CPU usage for an application in C#. I've found many ways to dig into the properties of processes, but I only want the CPU usage of the processes, and the total CPU like...

27 Dec at 16:12

How do I pre-populate a jQuery Datepicker textbox with today's date?

I have a very simple jQuery Datepicker calendar: ``` $(document).ready(function(){ $("#date_pretty").datepicker({ }); }); ``` and of course in the HTML... ``` <input type="text" size="10"...

How to make HTTP requests in PHP and not wait on the response

Is there a way in PHP to make HTTP calls and not wait for a response? I don't care about the response, I just want to do something like `file_get_contents()`, but not wait for the request to finish be...

30 Jan at 19:2

How to generate a core dump in Linux on a segmentation fault?

I have a process in Linux that's getting a segmentation fault. How can I tell it to generate a core dump when it fails?

21 Jan at 13:0

'Conda' is not recognized as internal or external command

I installed Anaconda3 4.4.0 (32 bit) on my Windows 7 Professional machine and imported NumPy and Pandas on Jupyter notebook so I assume Python was installed correctly. But when I type `conda list` and...

13 Jun at 14:21

Repository size limits for GitHub.com

Lately I have been using GitHub and I am wondering what is the repository size limit for files hosted on github.com?

3 Aug at 18:28

VSCode -- how to set working directory for debugging a Python program

How do I run a Python program under debug and set the working directory for the run?

9 Jun at 15:16

How to install JQ on Mac on the command line?

I need to know the most efficient way of installing JQ on Mac (El Capitan). The code is downloaded to my Mac but I would like to know how I can install and operate it via the command line.

How to get a variable type in Typescript?

I have a variable. ``` abc:number|string; ``` How can I check its type? I want to do something like below: ``` if (abc.type === "number") { // do something } ```

22 Feb at 05:33

Plotting a 2D heatmap

Using Matplotlib, I want to plot a 2D heat map. My data is an n-by-n Numpy array, each with a value between 0 and 1. So for the (i, j) element of this array, I want to plot a square at the (i, j) coor...

16 Oct at 16:7

How to pass arguments to Shell Script through docker run

I am new to the docker world. I have to invoke a shell script that takes command line arguments through a docker container. Ex: My shell script looks like: ``` #!bin/bash echo $1 ``` Dockerfile loo...

Navigation drawer: How do I set the selected item at startup?

My code works perfectly: every time an item in Navigation Drawer is clicked the item is selected. Of course I want to start the app with a default fragment (home), but Navigation Drawer doesn't have ...

22 Apr at 17:27

When should I use Async Controllers in ASP.NET MVC?

I have some concerns using async actions in ASP.NET MVC. When does it improve performance of my apps, and when does it ? 1. Is it good to use async action everywhere in ASP.NET MVC? 2. Regarding awa...

Difference between MongoDB and Mongoose

I wanted to use the mongodb database, but I noticed that there are two different databases with either their own website and installation methods: mongodb and mongoose. So I came up asking myself this...

20 Aug at 07:36

Ripple effect on Android Lollipop CardView

I'm trying to get a CardView to display the ripple effect when touched by setting the android:backgound attribute in the activity XML file as described [here](http://developer.android.com/training/mat...

momentJS date string add 5 days

i have a start date string "20.03.2014" and i want to add 5 days to this with moment.js but i don't get the new date "25.03.2014" in the alert window. here my javascript Code: ``` startdate = "20.03...

31 Jul at 20:59

Dictionary: Get list of values for list of keys

Is there a built-in/quick way to use a list of keys to a dictionary to get a list of corresponding items? For instance I have: ``` >>> mydict = {'one': 1, 'two': 2, 'three': 3} >>> mykeys = ['three'...

17 Dec at 16:5

How to create a dictionary of two pandas DataFrame columns

What is the most efficient way to organise the following pandas Dataframe: data = ``` Position Letter 1 a 2 b 3 c 4 d 5 e ``` into a dictionary...

4 Dec at 19:54

How to stop an unstoppable zombie job on Jenkins without restarting the server?

Our Jenkins server has a job that has been running for three days, but is not doing anything. Clicking the little X in the corner does nothing, and the console output log doesn't show anything either....

22 Jan at 10:37

cannot convert data (type interface {}) to type string: need type assertion

I am pretty new to go and I was playing with this [notify](https://github.com/bitly/go-notify/blob/master/notify.go) package. At first I had code that looked like this: ``` func doit(w http.Response...

23 May at 12:26

How do I raise the same Exception with a custom message in Python?

I have this `try` block in my code: ``` try: do_something_that_might_raise_an_exception() except ValueError as err: errmsg = 'My custom error message.' raise ValueError(errmsg) ``` Stri...

6 Feb at 08:7

Why are my CSS3 media queries not working on mobile devices?

In the styles.css, I am using media queries, both of which use a variation of: ``` /*--[ Normal CSS styles ]----------------------------------*/ @media only screen and (max-width: 767px) { /*--...

Best way to work with dates in Android SQLite

I'm having some trouble working with dates on my Android application that uses SQLite. I have a couple questions: 1. What type should I use to store dates in SQLite (text, integer, ...)? 2. Given th...

29 Jun at 14:12

Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error

I have imported framework for sending email from application in background i.e. `SKPSMTPMessage` Framework. Can somebody suggest why below error is shown ``` Undefined symbols for architecture i386: ...