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async at console app in C#? [duplicate]
...
Here is the simplest way to do this
static void Main(string[] args)
{
Task t = MainAsync(args);
t.Wait();
}
static async Task MainAsync(string[] args)
{
await ...
}
share
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Efficient way to apply multiple filters to pandas DataFrame or Series
...ines, which are discouraged by pep8.
Using the .query method forces to use strings, which is powerful but unpythonic and not very dynamic.
Once each of the filters is in place, one approach is
import numpy as np
import functools
def conjunction(*conditions):
return functools.reduce(np.logical_an...
Does Python's time.time() return the local or UTC timestamp?
...ment.
Here is some sample output I ran on my computer, converting it to a string as well.
Python 2.7.3 (default, Apr 24 2012, 00:00:54)
[GCC 4.7.0 20120414 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import time
>>> ts = tim...
When NOT to use yield (return) [duplicate]
...eason
// (a new state machine needs to be generated)
public IEnumerable<string> GetKeys()
{
foreach(string key in _someDictionary.Keys)
yield return key;
}
// DO this
public IEnumerable<string> GetKeys()
{
return _someDictionary.Keys;
}
Avoid using yield return when yo...
Hash Map in Python
...text, is dict(key1=value1, key2=value2, ...) but that requires the keys to strings which are also valid Python identifiers (and internally, this also creates a dictionary).
– user395760
Jan 2 '12 at 17:31
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How to alias a table in Laravel Eloquent queries (or using Query Builder)?
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Laravel supports aliases on tables and columns with AS. Try
$users = DB::table('really_long_table_name AS t')
->select('t.id AS uid')
->get();
Let's see it in action with an awesome tinker tool
$ php artisan tinker
[1] > Sch...
Foreign key constraint may cause cycles or multiple cascade paths?
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SQL Server does simple counting of cascade paths and, rather than trying to work out whether any cycles actually exist, it assumes the worst and refuses to create the referential actions (CASCADE): you can and should still create the constraints without the referential acti...
How to call a function from a string stored in a variable?
I need to be able to call a function, but the function name is stored in a variable, is this possible? e.g:
16 Answers
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How to clear a notification in Android
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I don't know why this isn't upvoted more and selected as the answer. This was the solution I was looking for. Thanks!
– loeschg
Jan 29 '13 at 23:48
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What is the difference between a stored procedure and a view?
...A view represents a virtual table. You can join multiple tables in a view and use the view to present the data as if the data were coming from a single table.
A stored procedure uses parameters to do a function... whether it is updating and inserting data, or returning single values or data sets.
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