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What is a monad?
Having briefly looked at Haskell recently, what would be a brief, succinct, practical explanation as to what a monad essentially is?
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Sublime Text 3, convert spaces to tabs
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132
At the bottom of the Sublime window, you'll see something representing your tab/space setting.
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Proper way to use **kwargs in Python
...icular default value, why not use named arguments in the first place?
def __init__(self, val2="default value", **kwargs):
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RichTextBox (WPF) does not have string property “Text”
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answered Sep 29 '12 at 8:32
sma6871sma6871
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Get color value programmatically when it's a reference (theme)
...igning)
– BlackBlind
Sep 3 '19 at 8:32
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res.sendFile absolute path
...res.sendFile. There are two simple ways to do it:
res.sendFile(path.join(__dirname, '../public', 'index1.html'));
res.sendFile('index1.html', { root: path.join(__dirname, '../public') });
Note: __dirname returns the directory that the currently executing script is in. In your case, it looks like...
Filtering for empty or NULL names in a queryset
I have first_name , last_name & alias (optional) which I need to search for. So, I need a query to give me all the names that have an alias set.
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Using @property versus getters and setters
...de world. There are plenty of ways to do this in Python (getattr, setattr, __getattribute__, etc..., but a very concise and clean one is:
def set_email(self, value):
if '@' not in value:
raise Exception("This doesn't look like an email address.")
self._email = value
def get_email(s...
What is an alternative to execfile in Python 3?
...me on Python3.3. I get "No such file or directory" when I exec(open('./some_file').read()). I have tried including the '.py' extension and also excluding the './' as well
– JoeyC
Feb 20 '14 at 0:20
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How do I use PHP namespaces with autoload?
...in the global scope.
See below for a working example:
<?php
function __autoload($class)
{
$parts = explode('\\', $class);
require end($parts) . '.php';
}
use Person\Barnes\David as MyPerson;
$class = new MyPerson\Class1();
Edit (2009-12-14):
Just to clarify, my usage of "use ... a...