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Simplest way to do a fire and forget method in c# 4.0
...e the warning that tells you you're running this Task as fire and forget.
If the method inside the curly braces returns a Task:
#pragma warning disable 4014
Task.Run(async () =>
{
await MyFireAndForgetMethod();
}).ConfigureAwait(false);
#pragma warning restore 4014
Let's break that down:
...
String comparison in Python: is vs. == [duplicate]
...built-in Python objects (like
strings, lists, dicts, functions,
etc.), if x is y, then x==y is also
True.
Not always. NaN is a counterexample. But usually, identity (is) implies equality (==). The converse is not true: Two distinct objects can have the same value.
Also, is it generall...
Parsing JSON from XmlHttpRequest.responseJSON
... with any browser that supports XMLHttpRequest and JSON.
JSONHttpRequest
If you prefer to use responseJSON, but want a more lightweight solution than JQuery, you might want to check out my JSONHttpRequest. It works exactly like a normal XMLHttpRequest, but also provides the responseJSON property. ...
How do you extract a column from a multi-dimensional array?
...ensional arrays. Normal Python lists are single-dimensional too.
However, if you have a simple two-dimensional list like this:
A = [[1,2,3,4],
[5,6,7,8]]
then you can extract a column like this:
def column(matrix, i):
return [row[i] for row in matrix]
Extracting the second column (in...
How default .equals and .hashCode will work for my classes?
...
Yes, the default implementation is Object's (generally speaking; if you inherit from a class that redefined equals and/or hashCode, then you'll use that implementation instead).
From the documentation:
equals
The equals method for class Object implements the most discriminating possi...
Understanding the basics of Git and GitHub [closed]
...ng with other people, but I don't collaborate with anybody so I don't know if this would be helpful for me.
3 Answers
...
Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
...oduced, which is why pandas has the tools to deal with it.
Datetimes too (if you use pd.NaT you won't need to specify the dtype)
In [24]: s = Series([Timestamp('20130101'),np.nan,Timestamp('20130102 9:30')],dtype='M8[ns]')
In [25]: s
Out[25]:
0 2013-01-01 00:00:00
1 NaT
2 2...
Should a RESTful 'PUT' operation return something
...
The HTTP specification (RFC 2616) has a number of recommendations that are applicable. Here is my interpretation:
HTTP status code 200 OK for a successful PUT of an update to an
existing resource. No response body needed. (Per Section 9...
Check if a string contains a number
... like to be a numberless string.
I need to enter a string and check to see if it contains any numbers and if it does reject it.
...
Get first day of week in PHP?
...
what if the week number is given? and i want it returns the start and the end date of that week.
– Oki Erie Rinaldi
Aug 7 '15 at 7:00
...