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String comparison in Python: is vs. == [duplicate]
...x==y is also
True.
Not always. NaN is a counterexample. But usually, identity (is) implies equality (==). The converse is not true: Two distinct objects can have the same value.
Also, is it generally considered better to just use '==' by default, even
when comparing int or Boolean value...
How to dynamically compose an OR query filter in Django?
...
Thanks! This was what I was looking for :) Didn't know you could do |=
– Jack Ha
May 12 '09 at 12:43
23
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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
..._unicode_ci; -- COLLATE added
CALL updateProductUsers(@rUsername, @rProductID, @rPerm);
Option 2: add COLLATE to the WHERE clause:
CREATE PROCEDURE updateProductUsers(
IN rUsername VARCHAR(24),
IN rProductID INT UNSIGNED,
IN rPerm VARCHAR(16))
BEGIN
UPDATE productUsers
INN...
How to make CSS3 rounded corners hide overflow in Chrome/Opera
...ound corners on a parent div to mask content from its childen. overflow: hidden works in simple situations, but breaks in webkit based browsers and Opera when the parent is positioned relatively or absolutely.
...
PHP Constants Containing Arrays?
... constant value:
Constants::$array[] = 'newValue';
If you don't like the idea that the array can be changed by others, a getter might help:
class Constants {
private static $array = array('guy', 'development team');
public static function getArray() {
return self::$array;
}
}
...
How to pass password to scp?
...h-keygen -t rsa -C "your_email@youremail.com"
copy the content of ~/.ssh/id_rsa.pub
and lastly add it to the remote machines ~/.ssh/authorized_keys
make sure remote machine have the permissions 0700 for ~./ssh folder and 0600 for ~/.ssh/authorized_keys
...
Counting Chars in EditText Changed Listener
...Backspace it counts up, but I need to decrement the number. How can I consider Backspace ?
5 Answers
...
Select elements by attribute in CSS
...er them with attribute selectors; and
you don't have to worry about CSS validation either, as CSS doesn't care about non-namespaced attribute names as long as they don't break the selector syntax.
share
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Determine if running on a rooted device
...refer an ability to silently check if root is available first, and if not,hide the respective options in the first place.
2...
support FragmentPagerAdapter holds reference to old fragments
...because you are instantiating and keeping references to your fragments outside of PagerAdapter.getItem, and are trying to use those references independently of the ViewPager. As Seraph says, you do have guarantees that a fragment has been instantiated/added in a ViewPager at a particular time - this...