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How can I display just a portion of an image in HTML/CSS?
...
As mentioned in the question, there is the clip css property, although it does require that the element being clipped is position: absolute; (which is a shame):
.container {
position: relative;
}
#clip {
position: absolute;
clip: rect(0, 100px, 200px, 0);
/* clip: shap...
How to Iterate over a Set/HashSet without an Iterator?
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You can use an enhanced for loop:
Set<String> set = new HashSet<String>();
//populate set
for (String s : set) {
System.out.println(s);
}
Or with Java 8:
set.forEach(System.out::println);
...
How to use Boost in Visual Studio 2010
...n for the platform of your choice.
Select & right click Microsoft.Cpp.<Platform>.user, and select Properties to open the Property Page for edit.
Select VC++ Directories on the left.
Edit the Include Directories section to include the path to your boost source files.
Repeat steps 3 - 6 for ...
How do I convert a double into a string in C++?
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The boost (tm) way:
std::string str = boost::lexical_cast<std::string>(dbl);
The Standard C++ way:
std::ostringstream strs;
strs << dbl;
std::string str = strs.str();
Note: Don't forget #include <sstream>
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What is the difference between const_iterator and non-const iterator in the C++ STL?
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It does have legitimate uses, like caching the results of a long calculation within a const class. On the other hand, that's pretty much the only time I've used a mutable in nearly twenty years of C++ development.
– Head Geek
Nov 22 '08 ...
When is std::weak_ptr useful?
...s an example of how to check for dangling pointer using lock():
#include <iostream>
#include <memory>
int main()
{
// OLD, problem with dangling pointer
// PROBLEM: ref will point to undefined data!
int* ptr = new int(10);
int* ref = ptr;
delete ptr;
// NEW
...
Sorting an array of objects in Ruby by object attribute?
...Yes, using Array#sort! this is easy.
myarray.sort! { |a, b| a.attribute <=> b.attribute }
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ASP.NET Identity reset password
...steps.
ApplicationDbContext =new ApplicationDbContext()
String userId = "<YourLogicAssignsRequestedUserId>";
String newPassword = "<PasswordAsTypedByUser>";
ApplicationUser cUser = UserManager.FindById(userId);
String hashedNewPassword = UserManager.PasswordHasher.HashPassword(newPasswo...
Gridview with two columns and auto resized images
...ever you want), and set the number of columns to 2:
res/layout/main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<GridVie...
How to insert element into arrays at specific position?
...D"= 9];
insertValueAtPosition($array, $insert_array, $position=2);
// result ====> ["A"=>8, "D"=>9, "K"=>3];
May not really look perfect, but it works.
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