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What is the difference between self::$bar and static::$bar in PHP?
What is the difference between using self and static in the example below?
5 Answers
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What's the (hidden) cost of Scala's lazy val?
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This is taken from the scala mailing list and gives implementation details of lazy in terms of Java code (rather than bytecode):
class LazyTest {
lazy val msg = "Lazy"
}
is compiled to something equivalent to the following Java code:
class LazyTest {
...
Remote Connections Mysql Ubuntu
...I've been unable to connect remotely to my MySQL server. I've tried everything and I'm still getting errors.
5 Answers
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How do I add a tool tip to a span element?
In the following code, I want a tool-tip to come up when the user hovers the span, how do I do that? I don't want to use any links.
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How to properly overload the
I am writing a small matrix library in C++ for matrix operations. However my compiler complains, where before it did not. This code was left on a shelf for 6 months and in between I upgraded my computer from debian etch to lenny (g++ (Debian 4.3.2-1.1) 4.3.2
) however I have the same problem on a Ub...
How do I make calls to a REST api using C#?
...e WCF Web API previously mentioned.
I thought I'd post an updated answer since most of these responses are from early 2012, and this thread is one of the top results when doing a Google search for "call restful service c#".
Current guidance from Microsoft is to use the Microsoft ASP.NET Web API Cl...
Android: What's the difference between Activity.runOnUiThread and View.post?
...ween Activity.runOnUiThread and View.post , could someone, please, explain?
4 Answers
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How can I resolve “Error: No developer directory found at /Developer”?
I just upgraded XCode to 4.3.1.
I'm using a script to build (and then deploy through Testflight) my app.
But I now receive this error:
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How to write LDAP query to test if user is member of a group?
...(sAMAccountName=yourUserName)
(memberof=CN=YourGroup,OU=Users,DC=YourDomain,DC=com))
and when you run that against your LDAP server, if you get a result, your user "yourUserName" is indeed a member of the group "CN=YourGroup,OU=Users,DC=YourDomain,DC=com
Try and see if this works!
If you use C...
What is the difference between NaN and None?
I am reading two columns of a csv file using pandas readcsv() and then assigning the values to a dictionary. The columns contain strings of numbers and letters. Occasionally there are cases where a cell is empty. In my opinion, the value read to that dictionary entry should be None but instead ...