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Persistence unit as RESOURCE_LOCAL or JTA?
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answered Dec 26 '09 at 9:47
skaffmanskaffman
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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
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edited May 23 '17 at 11:47
Community♦
111 silver badge
answered Feb 20 '14 at 4:34
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How exactly does a generator comprehension work?
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147
Do you understand list comprehensions? If so, a generator expression is like a list comprehensio...
Which data type for latitude and longitude?
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edited Nov 29 '17 at 17:48
answered Nov 16 '11 at 11:29
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How to convert std::string to NSString?
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VladimirVladimir
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How to commit no change and new message?
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176
There's rarely a good reason to do this, but the parameter is --allow-empty for empty commits (...
How to create a tag with Javascript?
...he style element to the head rather than the body.
This was tested in IE (7-9), Firefox, Opera and Chrome:
var css = 'h1 { background: red; }',
head = document.head || document.getElementsByTagName('head')[0],
style = document.createElement('style');
head.appendChild(style);
style.type =...
Dictionaries and default values
... Solomon Ucko
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answered Feb 20 '12 at 9:44
MattHMattH
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What's the false operator in C# good for?
...&&.
For example, look at this code (from http://ayende.com/blog/1574/nhibernate-criteria-api-operator-overloading - where I found out about this trick; archived version by @BiggsTRC):
public static AbstractCriterion operator &(AbstractCriterion lhs, AbstractCriterion rhs)
{
retu...
Set value to null in WPF binding
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227
I am using .NET 3.5 SP1 so it's very simple:
<TextBox Text="{Binding Price, TargetNullValue=...