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How does PHP 'foreach' actually work?
...r the simplest case is Traversable objects, as for these foreach is essentially only syntax sugar for code along these lines:
foreach ($it as $k => $v) { /* ... */ }
/* translates to: */
if ($it instanceof IteratorAggregate) {
$it = $it->getIterator();
}
for ($it->rewind(); $it->v...
Convert all strings in a list to int
In Python, I want to convert all strings in a list to integers.
4 Answers
4
...
Resolving LNK4098: defaultlib 'MSVCRT' conflicts with
...ne. Note how these libraries are not mentioned here. The linker automatically figures out what /M switch was used by the compiler and which .lib should be linked through a #pragma comment directive. Kinda important, you'd get horrible link errors and hard to diagnose runtime errors if there was a...
Redirect from an HTML page
...=http://example.com/" />
Note: Place it in the head section.
Additionally for older browsers if you add a quick link in case it doesn't refresh correctly:
<p><a href="http://example.com/">Redirect</a></p>
Will appear as
Redirect
This will still allow you to get to ...
How to get an outline view in sublime texteditor?
...
This is awesome and I was really missing outline view from Eclipse. This is honestly much better though I wish there was a way to have it pull up only the main functions and not the callbacks/success functions.
– Michael BW
...
Simplest way to do a recursive self-join?
...e ultimate ancestors in your chain, change it as appropriate
UNION ALL
SELECT m.*
FROM mytable m
JOIN q
ON m.parentID = q.PersonID
)
SELECT *
FROM q
By adding the ordering condition, you can preserve the tree order:
WITH q AS
...
How can I select every other line with multiple cursors in Sublime Text?
...t already enabled, enable them: Alt+R
Type in the expression .*\n.*\n
Find all: Alt+Enter
Press left arrow to get rid of the selections, leaving just the cursors: ←
You now have a cursor at the start of every odd-numbered line. If you wanted even-numbered lines, press down: ↓
Depending on the fi...
What is the difference between bottom-up and top-down?
...-up approach (to dynamic programming) consists in first looking at the "smaller" subproblems, and then solve the larger subproblems using the solution to the smaller problems.
...
pandas DataFrame: replace nan values with average of columns
...amount imputed for the mean using this?
– bernando_vialli
Jun 8 '18 at 14:29
25
Instead of df=df....
Javascript Array of Functions
...help others (like me 20 minutes ago :-) looking for any hint about how to call JS functions in an array.
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