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List vs List
...
The difference is that, for example, a
List<HashMap<String,String>>
is a
List<? extends Map<String,String>>
but not a
List<Map<String,String>>
So:
void withWilds( List<? extends Map<String,String>> foo ){}
void noWilds( List&l...
How can I do a case insensitive string comparison?
... not the best practice in .NET framework (4 & +) to check equality
String.Compare(x.Username, (string)drUser["Username"],
StringComparison.OrdinalIgnoreCase) == 0
Use the following instead
String.Equals(x.Username, (string)drUser["Username"],
StringC...
Access to Modified Closure
... probably looks something like:
private sealed class Closure
{
public string[] files;
public int i;
public bool YourAnonymousMethod(string name)
{
return name.Equals(this.files[this.i]);
}
}
As mentioned above, your function works because the predicates are invoked im...
How to check if any flags of a flag combination are set?
... {
if (!typeof(T).IsEnum)
throw new ArgumentException(string.Format("Type '{0}' is not an enum", typeof(T).FullName));
if (withFlags && !Attribute.IsDefined(typeof(T), typeof(FlagsAttribute)))
throw new ArgumentException(string.Format("Type '{0}' does...
Does Java casting introduce overhead? Why?
...pe to a wider type, which is done automatically and there is no overhead:
String s = "Cast";
Object o = s; // implicit casting
Explicit casting, when you go from a wider type to a more narrow one. For this case, you must explicitly use casting like that:
Object o = someObject;
String s = (String...
Rails 3 - can't install pg gem
When I try to run bundle (bundle install), I all the time get
16 Answers
16
...
Copy a variable's value into another
...nal object.
If your object contains only primitive types like numbers and strings, a deep copy and shallow copy will do exactly the same thing. But if your object contains other objects or arrays nested inside it, then a shallow copy doesn't copy those nested objects, it merely creates references t...
Why are global variables evil? [closed]
...rtant thing) changes there affect the entire interpreter. It is not like a string that you create instances... is like modifying all the string instances. Monkey patching smell.
– graffic
Mar 21 '14 at 6:18
...
405 method not allowed Web API
...b.Mvc; // Wrong namespace for HttpGet attribute !!!!!!!!!
[HttpGet]
public string Blah()
{
return "blah";
}
SHOULD BE
using System.Web.Http; // Correct namespace for HttpGet attribute !!!!!!!!!
[HttpGet]
public string Blah()
{
return "blah";
}
...
How to fallback to local stylesheet (not script) if CDN fails
...
May I ask what the issue with using unescaped strings initially, e.g. document.write("<script type='text/javascript' src='path/to/file.js'>")?
– Jack Tuck
Jan 22 '15 at 20:38
...