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What is the difference between Int and Integer?
In Haskell, what is the difference between an Int and an Integer ? Where is the answer documented?
6 Answers
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Calculate number of hours between 2 dates in PHP
...sions provide some new classes called DateTime, DateInterval, DateTimeZone and DatePeriod. The cool thing about this classes is, that it considers different timezones, leap years, leap seconds, summertime, etc. And on top of that it's very easy to use. Here's what you want with the help of this obje...
Finding the author of a line of code in Mercurial
... out who is responsible for a specific line of code? I know the linenumber and the filename but I would like Mercurial to tell me the author(s) of that specific line of code. Is there a command for that?
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How do I use pagination with Django class based generic ListViews?
...ListView
class CarListView(ListView):
model = models.Car # shorthand for setting queryset = models.Car.objects.all()
template_name = 'app/car_list.html' # optional (the default is app_name/modelNameInLowerCase_list.html; which will look into your templates folder for that path and fil...
How do I get the name of captured groups in a C# Regex?
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Use GetGroupNames to get the list of groups in an expression and then iterate over those, using the names as keys into the groups collection.
For example,
GroupCollection groups = regex.Match(line).Groups;
foreach (string groupName in regex.GetGroupNames())
{
Console.WriteLine(
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How to call Android contacts list?
I'm making an Android app, and need to call the phone's contact list. I need to call the contacts list function, pick a contact, then return to my app with the contact's name. Here's the code I got on the internet, but it doesnt work.
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Is it possible to do a sparse checkout without checking out the whole repository first?
... sub-folders to checkout
# they are checked out immediately after this command, no need to run git pull
Note that it requires git version 2.25 installed. Read more about it here: https://github.blog/2020-01-17-bring-your-monorepo-down-to-size-with-sparse-checkout/
UPDATE:
The above git clone com...
How to convert OutputStream to InputStream?
I am on the stage of development, where I have two modules and from one I got output as a OutputStream and second one, which accepts only InputStream . Do you know how to convert OutputStream to InputStream (not vice versa, I mean really this way) that I will be able to connect these two part...
C++ Singleton design pattern
... the Singleton design pattern that is lazy-evaluated, correctly-destroyed, and thread-safe.
class S
{
public:
static S& getInstance()
{
static S instance; // Guaranteed to be destroyed.
// Instantiated on first use.
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How to take screenshot of a div with JavaScript?
...ilding something called the "HTML Quiz". It's completely ran on JavaScript and it's pretty cool.
10 Answers
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