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Rails ActiveRecord date between
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Day.where(:reference_date => 6.months.ago..Time.now) works, thanks
– boulder_ruby
Nov 5 '12 at 1:41
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When to use “new” and when not to, in C++? [duplicate]
...Some examples of this are:
void foo()
{
Point p = Point(0,0);
} // p is now destroyed.
for (...)
{
Point p = Point(0,0);
} // p is destroyed after each loop
Some people will say that the use of new decides whether your object is on the heap or the stack, but that is only true of variables de...
How to run travis-ci locally
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Run the attached client
docker exec -it $BUILDID bash -l
Run the job
Now you are now inside your Travis environment. Run su - travis to begin.
This step is well defined but it is more tedious and manual. You will find every command that Travis runs in the environment. To do this, look for for...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...) { return false; }
bool isCpp0x() { return isCpp0xImpl(""); }
I don't know how likely you are to have this working on a real implementation though. One that exploits auto
struct x { x(int z = 0):z(z) { } int z; } y(1);
bool isCpp0x() {
auto x(y);
return (y.z == 1);
}
The following is bas...
What's the point of the X-Requested-With header?
...n XHR request.
If the server is checking that this header is present, it knows that the request didn't initiate from an attacker's domain attempting to make a request on behalf of the user with JavaScript. This also checks that the request wasn't POSTed from a regular HTML form, of which it is hard...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...# modifies z with y's keys and values & returns None
return z
and now:
z = merge_two_dicts(x, y)
In Python 3.9.0a4 or greater (final release date approx October 2020): PEP-584, discussed here, was implemented to further simplify this:
z = x | y # NOTE: 3.9+ ONLY
Explanation
Sa...
How to implement onBackPressed() in Fragments?
...pBackStack(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
}
}
Since now, we will work on our code BaseActivity and its fragments
Create private listener on top of your class BaseActivity
protected OnBackPressedListener onBackPressedListener;
create method to set listener in BaseActivity
pu...
Can “git pull --all” update all my local branches?
...ould vote up. I have this problem on github. I created a branch on the UI. Now I need my local to show the branch. git pull --all; git branch... argh... the command: git branch -a
– mariotti
Oct 29 '16 at 20:17
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Is there a reason that we cannot iterate on “reverse Range” in ruby?
... trying to add years to a form, I used: = f.select :model_year, (Time.zone.now.year + 1).downto(Time.zone.now.year - 100).to_a
– Eric Norcross
May 2 '18 at 0:14
add a comment
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Can I multiply strings in Java to repeat sequences? [duplicate]
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I was looking for this since years and now I finally found it.
– Daniel S.
Apr 21 '15 at 21:00
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