Questions

How does the compilation/linking process work?

How does the compilation and linking process work? [Stack Overflow's C++ FAQ](https://stackoverflow.com/questions/tagged/c++-faq)[the posting on meta that started all this](https://meta.stackexchange....

C++11 rvalues and move semantics confusion (return statement)

I'm trying to understand rvalue references and move semantics of C++11. What is the difference between these examples, and which of them is going to do no vector copy? ## First example ``` std::vec...

Change date format in a Java string

I've a `String` representing a date. ``` String date_s = "2011-01-18 00:00:00.0"; ``` I'd like to convert it to a `Date` and output it in `YYYY-MM-DD` format. > 2011-01-18 How can I achieve this?...

What is an index in SQL?

Also, when is it appropriate to use one?

4 Aug at 08:20

List of Stored Procedures/Functions Mysql Command Line

How can I see the list of the stored procedures or stored functions in mysql command line like `show tables;` or `show databases;` commands.

Updating to latest version of CocoaPods?

I'm having some issues installing `Alamofire 4.0` into my project. I've got the latest version of , running , and when I try to install alamofire I'm getting like 800 compiler errors. Apparently > Coc...

6 Apr at 21:9

Multidimensional Array [][] vs [,]

``` double[][] ServicePoint = new double[10][9]; // <-- gives an error (1) double[,] ServicePoint = new double[10,9]; // <-- ok (2) ``` What's their difference? yields an error, what's the reason? ...

11 Mar at 19:30

Why do we need the "finally" clause in Python?

I am not sure why we need `finally` in `try...except...finally` statements. In my opinion, this code block ``` try: run_code1() except TypeError: run_code2() other_code() ``` is the same wi...

4 Dec at 12:30

How to pretty print nested dictionaries?

How can I pretty print a dictionary with depth of ~4 in Python? I tried pretty printing with `pprint()`, but it did not work: ``` import pprint pp = pprint.PrettyPrinter(indent=4) pp.pprint(mydict) ...

18 Oct at 23:31

jQuery same click event for multiple elements

Is there any way to execute same code for different elements on the page? ``` $('.class1').click(function() { some_function(); }); $('.class2').click(function() { some_function(); }); ``` in...

11 Dec at 20:31

How to assign a heredoc value to a variable in Bash?

I have this multi-line string (quotes included): ``` abc'asdf" $(dont-execute-this) foo"bar"'' ``` How would I assign it to a variable using a heredoc in Bash? I don't want to escape the charact...

31 May at 09:10

How to diff a commit with its parent

Aside from writing an alias or script, is there a shorter command for getting the diff for a particular commit? ``` git diff 15dc8^..15dc8 ``` If you only give the single commit id `git diff 15dc8`, ...

7 Jul at 17:38

Converting dictionary to JSON

``` r = {'is_claimed': 'True', 'rating': 3.5} r = json.dumps(r) file.write(str(r['rating'])) ``` I am not able to access my data in the JSON. What am I doing wrong? ``` TypeError: string indices mu...

28 May at 17:15

What in the world are Spring beans?

I am yet to find a high-level definition of Spring beans that I can understand. I see them referenced often in Grails documentation and books, but I think that understanding what they are would be ben...

19 Jun at 14:8

Find index of last occurrence of a substring in a string

I want to find the position (or index) of the last occurrence of a certain substring in given input string `str`. For example, suppose the input string is `str = 'hello'` and the substring is `target...

5 Apr at 17:36

Improve subplot size/spacing with many subplots

I need to generate a whole bunch of vertically-stacked plots in matplotlib. The result will be saved using `savefig` and viewed on a webpage, so I don't care how tall the final image is, as long as th...

What is the difference between "is None" and "== None"

I recently came across this syntax, I am unaware of the difference. I would appreciate it if someone could tell me the difference.

21 Jan at 22:36

How to emulate GPS location in the Android Emulator?

I want to get longitude and latitude in Android emulator for testing. Can any one guide me how to achieve this? How do I set the location of the emulator to a test position?

How to navigate through textfields (Next / Done Buttons)

How can I navigate through all my text fields with the "Next" Button on the iPhone Keyboard? The last text field should close the Keyboard. I've setup the IB the Buttons (Next / Done) but now I'm st...

1 May at 14:58

Differences between a multidimensional array "[,]" and an array of arrays "[][]" in C#?

What are the differences between multidimensional arrays `double[,]` and array of arrays `double[][]` in C#? If there is a difference? What is the best use for each one?

Can anonymous class implement interface?

Is it possible to have an anonymous type implement an interface? I've got a piece of code that I would like to work, but don't know how to do this. I've had a couple of answers that either say no, o...

27 Aug at 19:33

How can I add a border to a widget in Flutter?

I'm using Flutter and I'd like to add a border to a widget (in this case, a `Text` widget). I tried `TextStyle` and `Text`, but I didn't see how to add a border.

28 Feb at 16:56

Global Angular CLI version greater than local version

When running `ng serve` I get this warning about my global CLI version being greater than my local version. I don't notice any issues from this warning, but I was wondering if the two versions should ...

23 Dec at 19:25

Loading/Downloading image from URL on Swift

I'd like to load an image from a URL in my application, so I first tried with Objective-C and it worked, however, with Swift, I've a compilation error: > 'imageWithData' is unavailable: use object c...

2 Apr at 17:31

Is Task.Result the same as .GetAwaiter.GetResult()?

I was recently reading some code that uses a lot of async methods, but then sometimes needs to execute them synchronously. The code does: ``` Foo foo = GetFooAsync(...).GetAwaiter().GetResult(); ``` ...

29 Oct at 07:44