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Why an interface can not implement another interface?
...ine abstract methods (the sane way an interface does), it is still a class and still has to be inherited (extended) and not implemented.
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Difference between namespace in C# and package in Java
What is the difference (in terms of use) between namespaces in C# and packages in Java?
6 Answers
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How do I upgrade PHP in Mac OS X?
... it will probably give you a newer version of PHP. I'm running OS X 10.6.2 and it has PHP 5.3.0.
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find vs find_by vs where
...is used as a helper when you're searching for information within a column, and it maps to such with naming conventions. For instance, if you have a column named name in your database, you'd use the following syntax:
Model.find_by(name: "Bob")
.where is more of a catch all that lets you use a bit...
Force Intellij IDEA to reread all maven dependencies
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Press Ctrl+Shift+A to find actions, and input "reimport", you will find the "Reimport All Maven Projects".
On a Mac, use ⌘+⇧+A instead.
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Return index of greatest value in an array
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This is probably the best way, since it’s reliable and works on old browsers:
function indexOfMax(arr) {
if (arr.length === 0) {
return -1;
}
var max = arr[0];
var maxIndex = 0;
for (var i = 1; i < arr.length; i++) {
if (arr[i] > m...
How can I determine the URL that a local Git repository was originally cloned from?
...ew days ago. I've since discovered that there are several forks on GitHub, and I neglected to note which one I took originally. How can I determine which of those forks I pulled?
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Bin size in Matplotlib (Histogram)
...specified by list of N+1 values where the first N give the lower bin edges and the +1 gives the upper edge of the last bin.
Code:
from numpy import np; from pylab import *
bin_size = 0.1; min_edge = 0; max_edge = 2.5
N = (max_edge-min_edge)/bin_size; Nplus1 = N + 1
bin_list = np.linspace(min_edge...
Using Transactions or SaveChanges(false) and AcceptAllChanges()?
I have been investigating transactions and it appears that they take care of themselves in EF as long as I pass false to SaveChanges() and then call AcceptAllChanges() if there are no errors:
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node.js child process - difference between spawn & fork
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Spawn is a command designed to run system commands. When you run spawn, you send it a system command that will be run on its own process, but does not execute any further code within your node process. You can add listeners for the proces...