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What does the “Just” syntax mean in Haskell?
... value was either constructed via Just or Nothing, there are no other (non-error) possibilities.
Since Nothing has no parameter type, when it's used as a constructor it names a constant value that is a member of type Maybe a for all types a. But the Just constructor does have a type parameter, whic...
Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
... For example, host objects in IE implemented as ActiveX objects will throw errors if treated as native objects (hence why try..catch is used to initialise MS XMLHttpRequest objects). Some DOM objects (like NodeLists in IE in quirks mode) if passed to Array methods will throw errors, DOM objects in I...
What does -1 mean in numpy reshape?
...],
[10],
[11],
[12]])
The above is consistent with numpy advice/error message, to use reshape(-1,1) for a single feature; i.e. single column
Reshape your data using array.reshape(-1, 1) if your data has a single feature
New shape as (-1, 2). row unknown, column 2. we get result new ...
How to create a directory using nerdtree
...
when type a I get an error Error detected while processing function <SNR>_15_showMenu..... . Culprit could be some other plugin. I will debug it later. thanks.
– Nick Vanderbilt
May 23 '10 at 0:02
...
UnicodeEncodeError: 'latin-1' codec can't encode character
What could be causing this error when I try to insert a foreign character into the database?
9 Answers
...
Sending multipart/formdata with jQuery.ajax
... [1] => /tmp/phpJQaOYo
)
[error] => Array
(
[0] => 0
[1] => 0
)
[size] => Array
(
[0] => 258004
...
Android Studio with Google Play Services
...ay_services.jar.
But when I try to Rebuild the project I get the following errors:
11 Answers
...
ReSharper warns: “Static field in generic type”
...jority of cases, having a static field in a generic type
is a sign of an error. The reason for this is that a static field in a
generic type will not be shared among instances of different close
constructed types. This means that for a generic class C<T> which
has a static field X, the...
Missing XML comment for publicly visible type or member
...erties (in 'Project properties' go to Project properties -> Build > "Errors and warnings" (section), Suppress Warnings (textbox), add 1591 (comma separated list)). By default it will change Active Configuration, consider to change configuration to All.
Use #pragma warning disable 1591 to disab...
Writing a dict to txt file and reading it back?
... as a string; but you want to turn the string back into a dictionary.
The error message you saw was because self.whip was a string, not a dictionary.
I first wrote that you could just feed the string into dict() but that doesn't work! You need to do something else.
Example
Here is the simplest ...