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Why is using 'eval' a bad practice?
...a security vulnerability, and it has to do with the trustworthiness of the string it's given as input. If that string comes, in whole or in part, from the outside world, there's a possibility of a scripting attack on your program if you're not careful. But that's thge derangement of an outside attac...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
...zip is one of the functions provided by the protonpack library.
Stream<String> streamA = Stream.of("A", "B", "C");
Stream<String> streamB = Stream.of("Apple", "Banana", "Carrot", "Doughnut");
List<String> zipped = StreamUtils.zip(streamA,
st...
The Ruby %r{ } expression
...
this regexp matches all strings that ends with .gif, .jpg...
you could replace it with
/\.(gif|jpg|jpeg|png)$/i
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Is there a difference between using a dict literal and a dict constructor?
...o be extra nice. Just as it always seems to offer to convert single-quoted strings into double-quoted -- for no apparent reason.
– maligree
Jul 7 '11 at 12:53
1
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SELECT * FROM X WHERE id IN (…) with Dapper ORM
...
Dapper supports this directly. For example...
string sql = "SELECT * FROM SomeTable WHERE id IN @ids"
var results = conn.Query(sql, new { ids = new[] { 1, 2, 3, 4, 5 }});
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Application Skeleton to support multiple screens
... like the Samsung Galaxy Tab is classified as large (larger than 4 inches)
Extra-large applies to large devices, for example large tablets
Android defines four generalised screen densities:
Qualifier Description Nominal value
ldpi low density 120 ppi
md...
How to get a variable name as a string in PHP?
...and using a variable variable name?
$var_name = "FooBar";
$$var_name = "a string";
then you could just
print($var_name);
to get
FooBar
Here's the link to the PHP manual on Variable variables
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Return anonymous type results?
...:
public class DogWithBreed
{
public Dog Dog { get; set; }
public string BreedName { get; set; }
}
public IQueryable<DogWithBreed> GetDogsWithBreedNames()
{
var db = new DogDataContext(ConnectString);
var result = from d in db.Dogs
join b in db.Breeds on d.B...
How do I print a double value with full precision using cout?
... calculates the right precision for me. And it's fast, too.
#include <string>
#include <boost/lexical_cast.hpp>
using boost::lexical_cast;
using std::string;
double d = 3.14159265358979;
cout << "Pi: " << lexical_cast<string>(d) << endl;
Output:
Pi: 3.14...
List Git aliases
...on the answer by johnny. It applies if you're not using git-alias from git-extras.
On Linux, run once:
git config --global alias.alias "! git config --get-regexp ^alias\. | sed -e s/^alias\.// -e s/\ /\ =\ /"
This will create a permanent git alias named alias which gets stored in your ~/.gitconf...