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Count the items from a IEnumerable without iterating?
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I usually just grab List and IList out of habit. But especially if you want to implement them yourself ICollection is easier and also has the Count property. Thanks!
– Mendelt
Oct 3 '08 at 22...
How can I change an element's text without changing its child elements?
I'd like to update element's text dynamically:
14 Answers
14
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Reverse Range in Swift
...o:0,by:-1) { print(i) } // 5 4 3 2 1
Update For latest Swift 2
First of all, protocol extensions change how reverse is used:
for i in (1...5).reverse() { print(i) } // 5 4 3 2 1
Stride has been reworked in Xcode 7 Beta 6. The new usage is:
for i in 0.stride(to: -8, by: -2) { print(i) } // 0 -2...
Creating a “logical exclusive or” operator in Java
...Here's an example:
public static void main(String[] args) {
boolean[] all = { false, true };
for (boolean a : all) {
for (boolean b: all) {
boolean c = a ^ b;
System.out.println(a + " ^ " + b + " = " + c);
}
}
}
Output:
false ^ false = false
f...
Java: Subpackage visibility?
...s others have explained, there is no such thing as a "subpackage" in Java: all packages are isolated and inherit nothing from their parents.
An easy way to access protected class members from another package is to extend the class and override the members.
For instance, to access ClassInA in packa...
How can I split up a Git commit buried in history?
...D^ to reset to before the commit, but keep your work tree intact.
Incrementally add changes and commit them, making as many commits as desired. add -p can be useful to add only some of the changes in a given file. Use commit -c ORIG_HEAD if you want to re-use the original commit message for a certai...
Haskell: How is pronounced? [closed]
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Sorry, I don't really know my math, so I'm curious how to pronounce the functions in the Applicative typeclass
Knowing your math, or not, is largely irrelevant here, I think. As you're probably aware, Haskell borrows a few bits of terminolo...
Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?
...ng iostream::eof in a loop condition is "almost certainly wrong". I generally use something like while(cin>>n) - which I guess implicitly checks for EOF.
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PHP Replace last occurrence of a String in a String?
...he first occurrence of a substring in a string - edit: wow. Php geniuses really made a function called strpos and strrpos ? Thanks....
– BarryBones41
Oct 5 '15 at 21:22
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Run a PostgreSQL .sql file using command line arguments
...n use the following by navigating to the bin folder of your PostgreSQL install:
12 Answers
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