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How to delete or add column in SQLITE?
... 170
1 foo bar 25 171
Now you want to remove the column height from this table.
Create another table called new_person
sqlite> CREATE TABLE new_person(
...> id INTEGER PRIMARY KEY,
...> first_name TEXT,
...> last_name ...
How to make a class property? [duplicate]
... type_ = type(obj)
# return self.fset.__get__(obj, type_)(value)
Now all will be fine.
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Getting the first and last day of a month, using a given DateTime object
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I know I'm being picky here, but shouldn't lastDayofMonth be firstDayOfMonth.AddMonths(1).AddSeconds(-1);?
– Karl Gjertsen
Jan 5 '16 at 15:27
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Python try-else
... print('if this prints, we had no error!') # won't print!
print('And now we have left the try block!') # will print!
And now,
>>> handle_error()
handled a RuntimeError, no big deal.
And now we have left the try block!
...
C++ Returning reference to local variable
...dies, making the reference returned from the function worthless because it now refers to an object that doesn't exist.
int main()
{
int& p = func1();
/* p is garbage */
}
The second version does work because the variable is allocated on the free store, which is not bound to the lifeti...
arrayfun can be significantly slower than an explicit loop in matlab. Why?
...n2 10.392475 seconds.
Soln3 0.239023 seconds.
Oli 0.010672 seconds.
Now, while the fully 'vectorized' solution is clearly the fastest, you can see that defining a function to be called for every x entry is a huge overhead. Just explicitly writing out the computation got us factor 5 speedup. I...
DateTime to javascript date
...
Try:
return DateTime.Now.Subtract(new DateTime(1970, 1,1)).TotalMilliseconds
Edit: true UTC is better, but then we need to be consistent
return DateTime.UtcNow
.Subtract(new DateTime(1970,1,1,0,0,0,DateTimeKind.Utc))
...
Xcode changes unmodified storyboard and XIB files
... because of merging issues. Total madness. They are so amazing, especially now that they have intelligent autolayout built in, you are really missing out if you are not using them.
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SVN how to resolve new tree conflicts when file is added on two branches
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@SantiBailors So funny I'm dying right now. Dying for my old friend git...
– Winter
Jun 26 '17 at 18:33
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iPhone UIView Animation Best Practice
...ify an arbitrary CoreImage filter to use as a transition, but as it stands now you can't do this on the iPhone, which lacks CoreImage.
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