大约有 30,000 项符合查询结果（耗时：0.0429秒） [XML]
Checking if an instance's class implements an interface?
... an interface. You don't know if the object is a class that happens to be called IInterface.
You can also use the reflection API in PHP to test this more specifically:
$class = new ReflectionClass('TheClass');
if ($class->implementsInterface('IInterface'))
{
print "Yep!\n";
}
See http://ph...
angular js unknown provider
...
Your code looks good, in fact it works (apart from the calls themselves) when copied & pasted into a sample jsFiddle: http://jsfiddle.net/VGaWD/
Hard to say what is going on without seeing a more complete example but I hope that the above jsFiddle will be helpful. What I'm s...
JavaScript plus sign in front of function expression
...arentheses (this is more common, but neither more nor less correct syntactically):
(function() { console.log("Foo!"); })();
// or
(function() { console.log("Foo!"); }());
share
|
improve this answ...
How to sum array of numbers in Ruby?
...
Ken Iverson introduced the operator / called "reduction operator" in the programming language APL. Source: Iverson, Kenneth. 1962. A Programming Language. Wiley. Another source: "Notation as a Tool of Thought", 1979 ACM Turing Award Lecture, Kenneth E. Iverson,...
How do I preview emails in Rails?
...riables the template expects.
This could be done with fixtures, but I typically prefer to just grab some pseudo-random real data. Remember - this is NOT a unit test - this is purely a development aid. It doesn't need to produce the same result every single time - in fact - it's probably better if...
css ellipsis on second line
... does not exists.
There is a jQuery plugin that is very easy to use, it is called dotdotdot.
It uses the container's width and height to calculate if it needs to truncate and add ellipsis.
$("#multilinedElement").dotdotdot();
Here is a jsFiddle.
...
How to determine MIME type of file in android?
...
First and foremost, you should consider calling MimeTypeMap#getMimeTypeFromExtension(), like this:
// url = file path or whatever suitable URL you want.
public static String getMimeType(String url) {
String type = null;
String extension = MimeTypeMap.getFi...
Instance variable: self vs @
...always reports its age 10 years younger than it actually is. Or more practically, a PersistentPerson class might lazily read that data from a persistent store, cache all its persistent data in a hash.
share
|
...
SVN (Subversion) Problem “File is scheduled for addition, but is missing” - Using Versions
...mp into the cold water and fire up your hidden Mac command shell :-) (it's called "Terminal" in the german OSX, no idea how to bring it up in the english version...)
share
|
improve this answer
...
Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...ption:
>>> print(b'\xff'.decode('ascii'))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xff in position 0…
The newline is part of what echo hi has output. echo's job is to output the parameters...