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How to revert a merge commit that's already pushed to remote branch?
git revert <commit_hash> alone won't work. -m must be specified, and I'm pretty confused about it.
16 Answers
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How to generate a core dump in Linux on a segmentation fault?
...re using. If you are using bash, then the ulimit command controls several settings relating to program execution, such as whether you should dump core. If you type
ulimit -c unlimited
then that will tell bash that its programs can dump cores of any size. You can specify a size such as 52M inst...
Why does Lua have no “continue” statement?
... use do break end inside for effect of continue. Naturally, you'll need to set up additional flags if you also intend to really break out of loop as well.
This will loop 5 times, printing 1, 2, and 3 each time.
for idx = 1, 5 do
repeat
print(1)
print(2)
print(3)
...
Sort a Map by values
... List<Entry<K, V>> list = new ArrayList<>(map.entrySet());
list.sort(Entry.comparingByValue());
Map<K, V> result = new LinkedHashMap<>();
for (Entry<K, V> entry : list) {
result.put(entry.getKey(), entry.getValue());
...
Finding all possible permutations of a given string in python
...plicates, try fitting your data into a structure with no duplicates like a set:
>>> perms = [''.join(p) for p in permutations('stacks')]
>>> len(perms)
720
>>> len(set(perms))
360
Thanks to @pst for pointing out that this is not what we'd traditionally think of as a typ...
What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?
...ubsequent initializations.
So the current java docs:
This constructor sets the seed of the random number generator to a
value very likely to be distinct from any other invocation of this
constructor.
could be extended by "across threads" and "uncorrelated"
Seed Sequence Quality
But the ...
__proto__ VS. prototype in JavaScript
...e chain. Car.prototype is not a temporary object. It is the object that is set as the value of the __proto__ property of any new objects made using Car as a constructor. If you want to think of anything as a blueprint object, think of Car as a blueprint for new car-objects.
– s...
How to determine if a list of polygon points are in clockwise order?
... save its point as previousPoint for next iteration. Before starting loop, set previousPoint to array's last point. Trade off is extra local variable copy but fewer array accesses. And most importantly, don't have to touch the input array.
– ToolmakerSteve
Feb...
How do I get the day of the week with Foundation?
...Formatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateFormat:@"EEEE"];
NSLog(@"%@", [dateFormatter stringFromDate:[NSDate date]]);
outputs current day of week as a string in locale dependent on current regional settings.
To get just a week day number you must use NSCal...
When should I use the HashSet type?
I am exploring the HashSet<T> type, but I don't understand where it stands in collections.
11 Answers
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