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Is there a better Windows Console Window? [closed]
...lopers. It seems like every time I think "well, it would be nice if it did _____", there's an option for it. Major thanks for fixing such a broken console experience in Windows!
– drharris
Jun 19 '12 at 13:51
...
How to pull a random record using Django's ORM?
...
Using order_by('?') will kill the db server on the second day in production. A better way is something like what is described in Getting a random row from a relational database.
from django.db.models.aggregates import Count
from random...
Validating IPv4 addresses with regexp
...|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.|$)){4}$ get same result debuggex.com/r/mz_-0dEm3wseIKqK, pretty similar with @Mark Byers answer
– Sllouyssgort
Mar 24 '16 at 11:55
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How to create a drop-down list?
...iew:
XML:
<Spinner
android:id="@+id/spinner1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:drawable/btn_dropdown"
android:spinnerMode="dropdown"/>
Java:
//get the spinner from the xml.
Spinner dropdown = findVi...
How can I use pointers in Java?
...on top of actual pointers in the runtime.
– kingfrito_5005
Aug 4 '15 at 20:32
@kingfrito_5005 It would appear that you...
Code for Greatest Common Divisor in Python [closed]
...
It doesn't return "the _largest_ number that divides both of them with no remainder" e.g., fractions.gcd(1, -1) is -1 but 1 > -1 i.e., 1 divides both 1 and -1 with no remainder and it is larger than -1, see bugs.python.org/issue22477
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How to keep environment variables when using sudo
...udo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting.
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What is the curiously recurring template pattern (CRTP)?
...uality<Derived> const & op2)
{
Derived const& d1 = static_cast<Derived const&>(op1);//you assume this works
//because you know that the dynamic type will actually be your template parameter.
//wonderful, isn't it?
Derived const& d2 = static_cast<De...
Python: finding an element in a list [duplicate]
...hod .index.
For the objects in the list, you can do something like:
def __eq__(self, other):
return self.Value == other.Value
with any special processing you need.
You can also use a for/in statement with enumerate(arr)
Example of finding the index of an item that has value > 100.
for...
How to deal with cyclic dependencies in Node.js
...orts forward declaration:
module.exports = {
};
// Controllers:
var other_module = require('./other_module');
// Functions:
var foo = function () {
};
// Module exports injects:
module.exports.foo = foo;
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