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Pairwise crossproduct in Python [duplicate]
...
You're looking for itertools.product if you're on (at least) Python 2.6.
>>> import itertools
>>> a=[1,2,3]
>>> b=[4,5,6]
>>> itertools.product(a,b)
<itertools.product object at 0x10049b870>
>>> list(itertools....
List Git commits not pushed to the origin yet [duplicate]
...lt;since>..<until>
You can use this with grep to check for a specific, known commit:
git log <since>..<until> | grep <commit-hash>
Or you can also use git-rev-list to search for a specific commit:
git rev-list origin/master | grep <commit-hash>
...
How to move up a directory with Terminal in OS X
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cd .. will back the directory up by one. If you want to reach a folder in the parent directory, you can do something like cd ../foldername. You can use the ".." trick as many times as you want to back up through multiple parent directories. For example, cd ../../App...
How do I clear the content of a div using JavaScript? [closed]
...;button onclick="clearBox('cart_item')" />
In JQuery (for reference)
If you prefer JQuery you could do:
$("#cart_item").html("");
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edited Sep 12 '12 at 5:30
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IntelliJ: How to auto-highlight variables like in Eclipse
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You'll definitely want to install the "Identifier Highlighter" plugin too, which allows you to easily navigate between highlighted usages.
– Daniel Alexiuc
Sep 20 '11 at 0:15
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How do I enter a multi-line comment in Perl? [duplicate]
...orks well when you don't plan to
leave the commented code in the source. If a Pod parser comes along,
your multiline comment is going to show up in the Pod translation. A
better way hides it from Pod parsers as well.
The =begin directive can mark a section for a particular purpose. If
t...
HttpServletRequest get JSON POST data [duplicate]
...meters in a servlet the same way:
request.getParameter("cmd");
But only if the POST data is encoded as key-value pairs of content type: "application/x-www-form-urlencoded" like when you use a standard HTML form.
If you use a different encoding schema for your post data, as in your case when you ...
What does `unsigned` in MySQL mean and when to use it?
...hen you need a larger upper
numeric range for the column. For
example, if an INT column is UNSIGNED,
the size of the column's range is the
same but its endpoints shift from
-2147483648 and 2147483647 up to 0 and 4294967295.
When do I use it ?
Ask yourself this question: Will this field...
Get random item from array [duplicate]
...
If you don't mind picking the same item again at some other time:
$items[rand(0, count($items) - 1)];
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delete vs delete[] [duplicate]
...-object (1.8) representing a base
class of such an object (clause 10).
If not, the behavior is undefined.
In the second alternative (delete
array), the value of the operand of
delete shall be the pointer value
which resulted from a previous array
new-expression. If not, the
behavi...