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Rotating a two-dimensional array in Python
... list, we will need to put list() around that to convert it. With a couple extra list() calls to convert the iterators to an actual list. So:
rotated = list(reversed(list(zip(*original))))
We can simplify that a bit by using the "Martian smiley" slice rather than reversed()... then we don't need th...
How to pass in password to pg_dump?
...r, like migrating a database you can use --dbname followed by a connection string (including the password) as stated in the pg_dump manual
In essence.
pg_dump --dbname=postgresql://username:password@127.0.0.1:5432/mydatabase
Note: Make sure that you use the option --dbname instead of the shorter ...
Download File Using Javascript/jQuery
...ble, but the iframe will still take up space at bottom of the page causing extra white space.
– Akrikos
Aug 7 '12 at 14:45
...
jQuery .data() does not work, but .attr() does
...ia .data() will return an Object while retrieval via .attr() will return a string. See jsfiddle example.
Since .data() does extra processing jQuery stores the results of attribute evaluation in $.cache - after all, once a data attribute has been evaluated it would be wasteful to re-evaluate on ever...
fetch in git doesn't get all branches
...mote>/<remote branch>
or (sometimes it doesn't work without the extra remotes/):
git checkout -b <local branch> remotes/<remote>/<remote branch>
Helpful git cheatsheets
Git Cheat Sheet (My personal favorite)
Some notes on git
Git Cheat Sheet (pdf)
...
Convert an enum to List
How do I convert the following Enum to a List of strings?
2 Answers
2
...
Convert string[] to int[] in one line of code using LINQ
I have an array of integers in string form:
6 Answers
6
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How do you get a query string on Flask?
Not obvious from the flask documention on how to get the query string. I am new, looked at the docs, could not find!
9 A...
Check existence of input argument in a Bash shell script
...guments the script was passed.
Or you can check if an argument is an empty string or not like:
if [ -z "$1" ]
then
echo "No argument supplied"
fi
The -z switch will test if the expansion of "$1" is a null string or not. If it is a null string then the body is executed.
...
Inline functions in C#?
...nline function is.
Let's say you have this code:
private void OutputItem(string x)
{
Console.WriteLine(x);
//maybe encapsulate additional logic to decide
// whether to also write the message to Trace or a log file
}
public IList<string> BuildListAndOutput(IEnumerable<string...