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How to vertically center content with variable height within a div?
...
Just add
position: relative;
top: 50%;
transform: translateY(-50%);
to the inner div.
What it does is moving the inner div's top border to the half height of the outer div (top: 50%;) and then the inner div up by half its height (transform: translateY(-50%)...
Difference between __getattr__ vs __getattribute__
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answered Jul 19 '10 at 2:22
Ned BatchelderNed Batchelder
306k6464 gold badges503503 silver badges608608 bronze badges
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How to update column with null value
...pecial syntax:
CREATE TABLE your_table (some_id int, your_column varchar(100));
INSERT INTO your_table VALUES (1, 'Hello');
UPDATE your_table
SET your_column = NULL
WHERE some_id = 1;
SELECT * FROM your_table WHERE your_column IS NULL;
+---------+-------------+
| some_id | your_column |
+---...
How do you remove an array element in a foreach loop?
...
220
If you also get the key, you can delete that item like this:
foreach ($display_related_tags as ...
Specifying an Index (Non-Unique Key) Using JPA
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208
With JPA 2.1 you should be able to do it.
import javax.persistence.Column;
import javax.persis...
PHP 5: const vs static
...nst, their values can be changed.
class ClassName {
static $my_var = 10; /* defaults to public unless otherwise specified */
const MY_CONST = 5;
}
echo ClassName::$my_var; // returns 10
echo ClassName::MY_CONST; // returns 5
ClassName::$my_var = 20; // now equals 20
ClassName::MY_CONS...
Replace duplicate spaces with a single space in T-SQL
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answered Mar 16 '10 at 15:51
Neil KnightNeil Knight
42.9k2222 gold badges116116 silver badges184184 bronze badges
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How best to determine if an argument is not sent to the JavaScript function
...aluates to false, which means it might actually be undefined, null, false, 0, '' (or anything else for which Boolean(...) returns false).
So the question is when to use which check, as they all yield slightly different results.
Checking arguments.length exhibits the 'most correct' behaviour, but i...
How do I run all Python unit tests in a directory?
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answered Mar 26 '13 at 6:09
Travis BearTravis Bear
9,78644 gold badges3434 silver badges4545 bronze badges
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