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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...
How do I modify a MySQL column to allow NULL?
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Your syntax error is caused by a missing "table" in the query
ALTER TABLE mytable MODIFY mycolumn varchar(255) null;
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Visual Studio build fails: unable to copy exe-file from obj\debug to bin\debug
... can confirm that when using an assembly version such as "2.0.*" I get the error, but when I instead use "2.0.0" it works as a charm! I urge more people to test this, and if you find it working please vote up this answer, because this is something that needs to be known! Hope Microsoft picks up on t...
Set a default parameter value for a JavaScript function
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@SiPlus and you got extra reference errors for free of charge while trying to use undefined objects :p Even while it may work with some browsers and might be faster, null is still an object and undefined is reference to primitive type that is trying to tell tha...
Is there a “vim runtime log”?
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:messages shows all warnings, errors, and informational messages that appeared (possibly briefly) in the vim statusline.
:echo errmsg prints the most recent error message.
g< is another feature few people know about. From :help g<:
The g< c...
Change a Git remote HEAD to point to something besides master
...n Schlack
Suppress the message 'origin/HEAD set to master' in case of an error.
$ git remote set-head origin -a
error: Not a valid ref: refs/remotes/origin/master
origin/HEAD set to master
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Why doesn't Ruby support i++ or i-- (increment/decrement operators)?
...n|de)crement" working so
|could somebody help here? Does this contain some errors or is the idea
|wrong?
(1) ++ and -- are NOT reserved operator in Ruby.
(2) C's increment/decrement operators are in fact hidden assignment.
They affect variables, not objects. You cannot accomplish
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What does status=canceled for a resource mean in Chrome Developer Tools?
...requests showed that subsequent requests weren't going to work (DNS lookup error, earlier (same) request resulted e.g. HTTP 400 error code, etc)
In our case we finally traced it down to one frame trying to append HTML to another frame, that sometimes happened before the destination frame even load...
How to get a vertical geom_vline to an x-axis of class date?
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This solution no longer works. Code produces ```Error: Attempted to create layer with no stat. Run rlang::last_error() to see where the error occurred.``'
– CoderGuy123
Apr 12 at 23:57
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How to call Android contacts list?
..., when tried to get e mail second time. Edit: if someone else getting same error, just delete "cursor.close();" stackoverflow.com/questions/9696868/…
– alicanbatur
Dec 6 '13 at 9:42
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