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Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
... // $arr1 is still array(2, 3)
$arr3 = &$arr1;
$arr3[] = 4; // now $arr1 and $arr3 are the same
?>
For the first part, the best way to be sure is to try ;-)
Consider this example of code :
function my_func($a) {
$a[] = 30;
}
$arr = array(10, 20);
my_func($arr);
var_dump($arr...
Text size and different android screen sizes
I know, it was discussed already 1000 times, but I can't adjust the text size for different screen sizes. I try to use 'sp' as size units in my custom style:
...
Differences between unique_ptr and shared_ptr [duplicate]
... Okay
unique_ptr<T> myOtherPtr = std::move(myPtr); // Okay, resource now stored in myOtherPtr
Similarly, you can do something like this:
unique_ptr<T> MyFunction() {
unique_ptr<T> myPtr(/* ... */);
/* ... */
return myPtr;
}
This idiom means "I'm returning a manag...
How do I use vim registers?
I only know of one instance using registers is via Ctrl R * whereby I paste text from a clipboard.
16 Answers
...
Ignore files that have already been committed to a Git repository [duplicate]
...m your system use: git rm --cached filename
To untrack every file that is now in your .gitignore:
First commit any outstanding code changes, and then, run this command:
git rm -r --cached .
This removes any changed files from the index(staging area), then just run:
git add .
Commit it:
g...
How to disable JavaScript in Chrome Developer Tools?
...gt; Settings > "Disable Javascript" -> Refresh works! Would love to know WHY it's not working in regular mode. I haven't found any tickets for this issue. Seems to only happen to certain users.
– Phil Tune
Oct 29 '14 at 19:16
...
Pandas: Setting no. of max rows
...
+1 for the pd.describe_option('display'), I did not know all the options
– nom-mon-ir
May 8 '13 at 19:08
41
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Multiple github accounts on the same computer?
...
The 3rd link is now broken (Multiple SSH Keys)
– RustyTheBoyRobot
Jun 1 '12 at 14:25
12
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What is Type-safe?
... Personally, I prefer to have my compiler tell me if I made that mistake.
Now, back to C#...
C# supports a language feature called covariance, this basically means that you can substitute a base type for a child type and not cause an error, for example:
public class Foo : Bar
{
}
Here, I cre...
cURL equivalent in Node.js?
...
To All: Nowadays, use request - npmjs.com/package/request - and upvote Nitish's answer, below, which is the better answer in 2018.
– Dan Nissenbaum
Feb 19 '18 at 23:32
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