Questions

Is there a standardized method to swap two variables in Python?

In Python, I've seen two variable values swapped using this syntax: ``` left, right = right, left ``` Is this considered the standard way to swap two variable values or is there some other means by...

19 Sep at 12:14

Access HTTP response as string in Go

I'd like to parse the response of a web request, but I'm getting trouble accessing it as string. ``` func main() { resp, err := http.Get("http://google.hu/") if err != nil { // handl...

30 Jul at 11:58

Why am I getting tree conflicts in Subversion?

I had a feature branch of my trunk and was merging changes from my trunk into my branch periodically and everything was working fine. Today I went to merge the branch back down into the trunk and any ...

3 Dec at 08:49

Location of sqlite database on the device

I've created a sqlite database programmatically with the default way of extending `SQLiteOpenHelper` and overriding `onCreate()`. This way the db gets created on the fly when needed. I'd like to chec...

11 Mar at 16:37

Play multiple CSS animations at the same time

How can I have two CSS animations playing ? - - - Example Code: ``` .image { position: absolute; top: 50%; left: 50%; width: 120px; height: 120px; margin:-60px 0 0 -60px; ...

18 Nov at 04:0

Change color and appearance of drop down arrow

I want to change the default appearance of the arrow of a dropdown list so that looks the same across browsers. Is there a way to override the default look and feel of the drop down arrow using CSS or...

4 Mar at 16:57

Plotting with ggplot2: "Error: Discrete value supplied to continuous scale" on categorical y-axis

The plotting code below gives `Error: Discrete value supplied to continuous scale` What's wrong with this code? It works fine until I try to change the scale so the error is there... I tried to figur...

How to remove multiple items from a list in just one statement?

In python, I know how to remove items from a list: ``` item_list = ['item', 5, 'foo', 3.14, True] item_list.remove('item') item_list.remove(5) ``` The above code removes the values 5 and 'item' from ...

15 Jun at 23:21

Hiding a password in a python script (insecure obfuscation only)

I have got a python script which is creating an ODBC connection. The ODBC connection is generated with a connection string. In this connection string I have to include the username and password for th...

1 May at 20:9

did you register the component correctly? For recursive components, make sure to provide the "name" option

I configured `'i-tab-pane': Tabpane` but report error,the code is bellow: ``` <template> <div class="page-common"> <i-tabs> <i-tab-pane label="wx"> content </i-tab-pane> ...

3 Oct at 01:18

Python: Making a beep noise

I'm trying to get the program to give me a beeping noise. I'm on a windows machine. I've looked at [http://docs.python.org/library/winsound.html](http://docs.python.org/library/winsound.html) But not...

24 Jul at 13:52

Android selector & text color

I want a simple `TextView` to behave the way `simple_list_item_1` in a `ListView` does. Here's the XML: ``` <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_hei...

15 Oct at 12:16

Does MS SQL Server's "between" include the range boundaries?

For instance can ``` SELECT foo FROM bar WHERE foo BETWEEN 5 AND 10 ``` select 5 and 10 or they are excluded from the range?

8 Aug at 11:57

JavaScript Chart Library

Would anyone recommend a particular JavaScript charting library - specifically one that doesn't use flash at all?

23 Sep at 09:4

Storing data into list with class

I have the following class: ``` public class EmailData { public string FirstName{ set; get; } public string LastName { set; get; } public string Location{ set; get; } } ``` I then did t...

28 Dec at 07:20

Best way to check if mysql_query returned any results?

I'm looking for the best way to check and see if any results were returned in a query. I feel like I write this part of code a lot and sometimes I get errors, and sometimes I don't. For example, I run...

10 Nov at 12:54

Convert string[] to int[] in one line of code using LINQ

I have an array of integers in string form: ``` var arr = new string[] { "1", "2", "3", "4" }; ``` I need to an array of 'real' integers to push it further: ``` void Foo(int[] arr) { .. } ``` I ...

17 Nov at 21:54

Uint8Array to string in Javascript

I have some UTF-8 encoded data living in a range of Uint8Array elements in Javascript. Is there an efficient way to decode these out to a regular javascript string (I believe Javascript uses 16 bit Un...

20 Jan at 10:13

Setting selection to Nothing when programming Excel

When I create a graph after using range.copy and range.paste it leaves the paste range selected, and then when I create a graph a few lines later, it uses the selection as the first series in the plot...

12 Jun at 19:18

OrderBy pipe issue

I'm not able to translate this code from Angualr 1 to Angular 2: ``` ng-repeat="todo in todos | orderBy: 'completed'" ``` This is what i've done following the Thierry Templier's answer: ``` ...

Visual Studio 2017 - Git failed with a fatal error

I am using Visual Studio 2017 Community Edition (CE), and I have signed into my Microsoft account and I am connected to VSTS. I can see all my projects and repositories, but when I attempt to pull/fet...

NPM install fails with node-gyp

We are having problems running on our project. A certain file cannot be found : ``` fatal error C1083: Cannot open include file: 'windows.h' ``` It appears to be coming from the module : > c:\Progr...

12 Dec at 15:42

What generates the "text file busy" message in Unix?

What operation generates the error "text file busy"? I am unable to tell exactly. I think it is related to the fact that I'm creating a temporary python script (using tempfile) and using execl from i...

27 May at 02:25

Split string in JavaScript and detect line break

I have a small function I found that takes a string from a `textarea` and then puts it into a `canvas` element and wraps the text when the line gets too long. But it doesn't detect line breaks. This i...

UTF-8, UTF-16, and UTF-32

What are the differences between UTF-8, UTF-16, and UTF-32? I understand that they will all store Unicode, and that each uses a different number of bytes to represent a character. Is there an advanta...

4 Jan at 18:22