Questions

How can I send an email using PHP?

I am using PHP on a website and I want to add emailing functionality. I have [WampServer](https://en.wikipedia.org/wiki/WampServer) installed. How do I send an email using PHP?

27 Mar at 02:50

How can I reconcile detached HEAD with master/origin?

I'm new at the branching complexities of Git. I always work on a single branch and commit changes and then periodically push to my remote origin. Somewhere recently, I did a reset of some files to ge...

29 May at 18:21

How to make a vertical line in HTML

How do you make a vertical line using HTML?

17 Oct at 15:51

AddTransient, AddScoped and AddSingleton Services Differences

I want to implement [dependency injection](https://en.wikipedia.org/wiki/Dependency_injection) (DI) in ASP.NET Core. So after adding this code to `ConfigureServices` method, both ways work. What is th...

8 Jun at 00:10

How to SELECT FROM stored procedure

I have a stored procedure that returns rows: ``` CREATE PROCEDURE MyProc AS BEGIN SELECT * FROM MyTable END ``` My actual procedure is a little more complicated, which is why a stored procedure i...

How do you do block comments in YAML?

How do I comment a block of lines in YAML?

13 Oct at 14:44

Traverse a list in reverse order in Python

How do I traverse a list in reverse order in Python? So I can start from `collection[len(collection)-1]` and end in `collection[0]`. I also want to be able to access the loop index.

6 Sep at 10:26

How to find if an array contains a specific string in JavaScript/jQuery?

Can someone tell me how to detect if `"specialword"` appears in an array? Example: ``` categories: [ "specialword" "word1" "word2" ] ```

8 Nov at 15:36

How do I get a consistent byte representation of strings in C# without manually specifying an encoding?

How do I convert a `string` to a `byte[]` in .NET (C#) without manually specifying a specific encoding? I'm going to encrypt the string. I can encrypt it without converting, but I'd still like to kno...

26 Feb at 22:22

How and when to use ‘async’ and ‘await’

From my understanding one of the main things that [async and await](https://learn.microsoft.com/en-us/dotnet/csharp/async) do is to make code easy to write and read - but is using them equal to spawni...

28 Sep at 20:12

How do I test a class that has private methods, fields or inner classes?

How do I use JUnit to test a class that has internal private methods, fields or nested classes? It seems bad to change the access modifier for a method just to be able to run a test.

19 Oct at 20:41

python: SyntaxError: EOL while scanning string literal

I have the above-mentioned error in `s1="some very long string............"` Does anyone know what I am doing wrong?

7 Apr at 03:24

Convert a list to a data frame

I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a way to convert this structure into a data frame that has 132 rows and 20 columns of data? Here is some...

11 Nov at 20:2

Regex to match only letters

How can I write a regex that matches only letters?

20 Jan at 05:19

Where does PHP store the error log? (PHP 5, Apache, FastCGI, and cPanel)

I am on shared hosting and have [cPanel](https://en.wikipedia.org/wiki/CPanel), Apache, and PHP is run by [FastCGI](https://en.wikipedia.org/wiki/FastCGI). Where does PHP store the error log? Is ther...

26 Sep at 13:40

How to use java.net.URLConnection to fire and handle HTTP requests

Use of [java.net.URLConnection](http://docs.oracle.com/javase/8/docs/api/java/net/URLConnection.html) is asked about pretty often here, and the [Oracle tutorial](http://download.oracle.com/javase/tuto...

How do I get the current time in milliseconds in Python?

How do I get the current time in milliseconds in Python?

17 Jul at 06:49

How to clear the canvas for redrawing

After experimenting with composite operations and drawing images on the canvas I'm now trying to remove images and compositing. How do I do this? I need to clear the canvas for redrawing other images...

jQuery checkbox checked state changed event

I want an event to fire client side when a checkbox is checked / unchecked: ``` $('.checkbox').click(function() { if ($(this).is(':checked')) { // Do stuff } }); ``` Basically I want it to ...

30 Jun at 12:42

Join/Where with LINQ and Lambda

I'm having trouble with a query written in LINQ and Lambda. So far, I'm getting a lot of errors here's my code: ``` int id = 1; var query = database.Posts.Join(database.Post_Metas, ...

29 Dec at 00:29

How to detect Safari, Chrome, IE, Firefox and Opera browsers?

I have 5 addons/extensions for Firefox, Chrome, Internet Explorer(IE), Opera, and Safari. How can I correctly recognize the user browser and redirect (once an install button has been clicked) to downl...

10 Jul at 22:22

How do I update or sync a forked repository on GitHub?

I forked a project, made changes, and created a pull request which was accepted. New commits were later added to the repository. How do I get those commits into my fork?

How can I start PostgreSQL server on Mac OS X?

### Final update: I had forgotten to run the `initdb` command. --- By running this command ``` ps auxwww | grep postgres ``` I see that `postgres` is not running ``` > ps auxwww | grep postgres...

27 Aug at 13:25

Difference between decimal, float and double in .NET?

What is the difference between `decimal`, `float` and `double` in .NET? When would someone use one of these?

11 Jul at 18:33

How to change value of object which is inside an array using JavaScript or jQuery?

The code below comes from jQuery UI Autocomplete: ``` var projects = [ { value: "jquery", label: "jQuery", desc: "the write less, do more, JavaScript library", ico...

7 Sep at 15:20