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Error: Argument is not a function, got undefined
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My answer was not an extra space but it lead me to my fix. I had Controller instead of controller and that was all it took.
– Grandizer
Oct 26 '15 at 21:05
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What's the point of 'const' in the Haskell Prelude?
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Say you want to create a list of Nothings equal to the length of a string. As const returns its first argument, no matter the second, you can do:
listOfNothings :: String -> [Maybe Char]
listOfNothings = (map . const) Nothing
or, more explicitly:
listOfNothing st = map (const Nothing)...
PHP - Check if two arrays are equal
... The above comment is false. If $b has all the elements $a has plus some extra ones, the two arrays are not equal yet the above code will say they are.
– Ghola
Sep 8 '14 at 12:14
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Extracting just Month and Year separately from Pandas Datetime column
...solve the simpler problem of just formatting the datetime column into some stringified representation, for that you can just make use of the strftime function from the datetime.datetime class, like this:
In [5]: df
Out[5]:
date_time
0 2014-10-17 22:00:03
In [6]: df.date_time
Out[6]:
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Most lightweight way to create a random string and a random hexadecimal number
What is the most lightweight way to create a random string of 30 characters like the following?
13 Answers
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ASP.NET MVC 4 Custom Authorize Attribute with Permission Codes (without roles)
...rizeUserAttribute : AuthorizeAttribute
{
// Custom property
public string AccessLevel { get; set; }
protected override bool AuthorizeCore(HttpContextBase httpContext)
{
var isAuthorized = base.AuthorizeCore(httpContext);
if (!isAuthorized)
{
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Delete all local changesets and revert to tree
...he merge dialogue appears, simply click the little '+' icon to reveal some extra options, one of which is "discard changesets from merge target (other) revision". Doing this will mean your changesets will still be in the repo and get pushed, but will have no effect, because they will be discarded in...
What does character set and collation mean exactly?
...odings is a character set.
Now, suppose that we want to compare
two string values, 'A' and 'B'. The
simplest way to do this is to look at
the encodings: 0 for 'A' and 1 for
'B'. Because 0 is less than 1, we say
'A' is less than 'B'. Now, what we've
just done is apply a collation to ...
How can I find unused images and CSS styles in a website? [closed]
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+1 for extra command-line geekiness!
– ngeek
Mar 2 '11 at 12:39
2
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AddRange to a Collection
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I am serious, actually.The main reason is that it's extra cognitive-load, which is often really quite difficult. You're constantly trying to evaluate negative conditions, which is usually relatively hard, you have both branches anyway, it's (IMO) easier to say 'if null' do th...