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What's a standard way to do a no-op in python?
I often find myself writing if / elif / else constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if statements, but for readability I find it helps to include them all, so that if you are l...
How many random elements before MD5 produces collisions?
...uadrillion 607 trillion 431 billion 768 million 211 thousand 456.
However if you keep all the hashes then the probability is a bit higher thanks to birthday paradox. To have a 50% chance of any hash colliding with any other hash you need 264 hashes. This means that to get a collision, on average, y...
How to get all of the immediate subdirectories in Python
...scandir:
list_subfolders_with_paths = [f.path for f in os.scandir(path) if f.is_dir()]
Bonus: With scandir you can also simply only get folder names by using f.name instead of f.path.
This (as well as all other functions below) will not use natural sorting. This means results will be sorted lik...
wait() or sleep() function in jquery?
...
That'd be .delay().
http://api.jquery.com/delay/
If you are doing AJAX stuff tho, you really shouldn't just auto write "done" you should really wait for a response and see if it's actually done.
sha...
How do you change the width and height of Twitter Bootstrap's tooltips?
...h whatever fits your needs.
.tooltip-inner {
max-width: 350px;
/* If max-width does not work, try using width instead */
width: 350px;
}
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ssh: The authenticity of host 'hostname' can't be established
...king=no
EDIT
As @IanDunn notes, there are security risks to doing this. If the resource you're connecting to has been spoofed by an attacker, they could potentially replay the destination server's challenge back to you, fooling you into thinking that you're connecting to the remote resource while...
How to iterate through a DataTable
...
@RehanKhan - cmd would be the SQL Command to execute. If you're using LINQ, you'd write your LINQ Query and get your results that way.
– Justin Niessner
May 7 '16 at 20:03
...
How to set a default value with Html.TextBoxFor?
Simple question, if you use the Html Helper from ASP.NET MVC Framework 1 it is easy to set a default value on a textbox because there is an overload Html.TextBox(string name, object value) . When I tried using the Html.TextBoxFor method, my first guess was to try the following which did not work...
Couldn't connect to server 127.0.0.1:27017
...indicates that mongodb is terminating because there is an old lock file.
If you are not and were not running with journaling, remove the lock file, run repair, and start mongodb again.
If you are or were running with journaling turned on, see the relevant Mongo DB docs. Note that they say "If you...
LISTAGG in Oracle to return distinct values
... the_column)
from (
select distinct the_column
from the_table
) t
If you need more columns, something like this might be what you are looking for:
select col1, listagg(col2, ',') within group (order by col2)
from (
select col1,
col2,
row_number() over (partition by col...