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What does “xmlns” in XML mean?
....com/apk/res/android"
In the document, you see elements like: <android:foo />
Think of the namespace prefix as a variable with a short name alias for the full namespace URI. It is the equivalent of writing <http://schemas.android.com/apk/res/android:foo /> with regards to what it "mea...
How to convert a dictionary to query string in Python?
...ightly different:
from urllib.parse import urlencode
urlencode({'pram1': 'foo', 'param2': 'bar'})
output: 'pram1=foo&param2=bar'
for python2 and python3 compatibility, try this:
try:
#python2
from urllib import urlencode
except ImportError:
#python3
from urllib.parse import ...
Retain cycle on `self` with blocks
...ject {…}
- (void) encodeVideoAndCall: (Callback) block;
@end
@interface Foo : NSObject {…}
@property(retain) VideoEncoder *encoder;
@end
@implementation Foo
- (void) somewhere {
[encoder encodeVideoAndCall:^{
[self doSomething];
}];
}
In these situations I don’t do the self...
What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...he hash doesn't get sent to the server.
– Chris Broadfoot
Oct 17 '10 at 2:58
7
...
Can I add jars to maven 2 build classpath without installing them?
...
Of course if you have complex groupId like 'com.foo.bar' your directory structure should be /com/foo/bar/artifactId/version/artifactId-verion.jar
– Dmytro Boichenko
Apr 16 '14 at 11:46
...
How to access a preexisting collection with Mongoose?
... the result.
for example, if I have a document { a : 1 } in a collection 'foo' and I want to list its properties, I do this:
find('foo', {a : 1}, function (err, docs) {
console.dir(docs);
});
//output: [ { _id: 4e22118fb83406f66a159da5, a: 1 } ]
...
Position: absolute and parent height?
...ection/column layout I think the OP was trying to create.
<section id="foo">
<header>Foo</header>
<article>
<div class="main one"></div>
<div class="main two"></div>
</article>
</section>
<div style="cle...
How to override to_json in Rails?
...call what you want:
Try this:
def as_json
{ :username => username, :foo => foo, :bar => bar }
end
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Literal notation for Dictionary in C#?
...ference.
// C# 1..8
var x = new Dictionary <string,int> () { { "foo", 4 }, { "bar", 5 }};
// C# 9
var x = ["foo":4, "bar": 5];
This synthax makes the work with dictionaries in C# simpler and removing the redundant code.
You can follow the issue on GitHub (and here is the miles...
Why use @PostConstruct?
...ously excluding Constructor Injection
Real-world example:
public class Foo {
@Inject
Logger LOG;
@PostConstruct
public void fooInit(){
LOG.info("This will be printed; LOG has already been injected");
}
public Foo() {
LOG.info("This will NOT be printed, ...