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How to update SQLAlchemy row entry?
...ng the addition in Python using the in-place addition. If there is a race, one of the transactions will then succeed and the others will fail and must retry (with the new state of the DB). But I might've misunderstood SERIALIZABLE.
– Ilja Everilä
Sep 28 '18 at...
Javascript/DOM: How to remove all events of a DOM object?
...Remove all handlers for a specific type of event or all event handlers for one type?
Remove all event handlers
If you want to remove all event handlers (of any type), you could clone the element and replace it with its clone:
var clone = element.cloneNode(true);
Note: This will preserve attribu...
Tables instead of DIVs [duplicate]
... depending on how wide the window is stretched. Almost everything is best done as a div, but some tricky cases are better with a table when you consider old browsers.
– Nosredna
Jun 10 '09 at 14:21
...
How do I find a “gap” in running counter with SQL?
...lice it into smaller pieces and run some SQL on it). I suppose I could run one query to find the start of a gap, then another to find the end of a gap, and them "merge sort" the two sequences.
– Hamish Grubijan
May 20 '13 at 21:12
...
Why do access tokens expire?
...ith that token, I send it to the server, it will refresh and send me a new one. What's to stop that? Don't say IP Address or even MAC, because that's unreasonable.
– Suamere
Sep 24 '15 at 18:57
...
What's onCreate(Bundle savedInstanceState)
Can anyone help me to know about the Bundle savedInstanceState in onCreate(Bundle savedInstanceState) I am newbie in Android. I try to understand it from developer.android.com. But I am not able to understand. Can anyone simplify it?
...
Equivalent C++ to Python generator pattern
... State { unsigned i, j; };
State make();
void next(State&);
bool isDone(State const&);
Of course, we wrap this as a proper class:
class PairSequence:
// (implicit aliases)
public std::iterator<
std::input_iterator_tag,
std::pair<unsigned, unsigned>
...
How to change size of split screen emacs windows?
....
C-x { (shrink-window-horizontally) is also bound by default.
Following one of these commands with repeat (C-x z to initiate, and just z for continued repetition) makes it pretty easy to get to the exact size you want.
If you regularly want to do this with a specific value, you could record a k...
Javascript equivalent of Python's zip function
...answer with variadic arguments, you may want to perf test it.)
Here's a oneliner:
function zip(arrays) {
return arrays[0].map(function(_,i){
return arrays.map(function(array){return array[i]})
});
}
// > zip([[1,2],[11,22],[111,222]])
// [[1,11,111],[2,22,222]]]
// If you be...
What is the difference between active and passive FTP?
Can someone tell me what is the difference between active and passive FTP?
Which one is preferable?
5 Answers
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