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Converting between datetime, Timestamp and datetime64
...can reproduce the long value on numpy-1.8.0 installed as:
pip install git+https://github.com/numpy/numpy.git#egg=numpy-dev
The same example:
>>> from datetime import datetime
>>> import numpy
>>> numpy.datetime64('2002-06-28T01:00:00.000000000+0100').astype(datetime)
1...
How to sort objects by multiple keys in Python?
...ve if x < y, zero if x == y
and strictly positive if x > y.
https://portingguide.readthedocs.io/en/latest/comparisons.html#the-cmp-function
"""
return (x > y) - (x < y)
def multikeysort(items, columns):
comparers = [
((i(col[1:].strip()), -1) if col.startsw...
Pass Variables by Reference in Javascript
...rgument(eval(byRef("x")), 42);
alert("x after: " + x);
})()
Live sample https://jsfiddle.net/t3k4403w/
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TSQL - Cast string to integer or return default value
...nd we help each other to improve it. TRY_CAST Function for SQL Server 2008 https://gist.github.com/jotapardo/800881eba8c5072eb8d99ce6eb74c8bb
The two main differences are that you must pass 3 parameters and you
must additionally perform an explicit CONVERT or CAST to the field.
However, it i...
What is a “feature flag”?
...blic.
Here's a simple package that helps you do this in ASP.NET MVC land: https://github.com/cottsak/DevCookie (full disclosure: I'm the author)
Fowler also has a much longer article than the one linked above with a lot more details.
This post (on Fowler's site also) explains the various types of...
Curious null-coalescing operator custom implicit conversion behaviour
...he optimizer in Roslyn works, see my series of articles which begins here: https://ericlippert.com/2012/12/20/nullable-micro-optimizations-part-one/
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How to merge a specific commit in Git
...erience issues.
Here's a reference to Raymond Chen's blogs on this topic: https://devblogs.microsoft.com/oldnewthing/20180312-00/?p=98215
The only issue I had with Raymond's blog is he did not provide a full working example. So I will attempt to provide one here.
The question above asks how to me...
What is Bootstrap?
...t is not a standard html element but is a standard Bootstrap element (e.g. https://getbootstrap.com/docs/3.3/components/#progress). In this way Bootstrap extends the list of "standard" web elements in a visually consistent way. e.g. html: <span class="glyphicon glyphicon-align-left"></span&...
What's the algorithm to calculate aspect ratio?
...d timing tests have been done by others, you can check one benchmark here: https://lemire.me/blog/2013/12/26/fastest-way-to-compute-the-greatest-common-divisor/)
Here is it:
/* the binary Great Common Divisor calculator */
function gcd (u, v) {
if (u === v) return u;
if (u === 0) re...
PDO support for multiple queries (PDO_MYSQL, PDO_MYSQLND)
...nd this info:
Invalid PDO query does not return an error
Here is the bug:
https://bugs.php.net/bug.php?id=61613
So, I tried doing this with mysqli and haven't really found any solid answer on how it works so I thought I's just leave it here for those who want to use it..
try{
// db connecti...