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Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
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You should override ActionView::Base.field_error_proc. It's currently defined as this within ActionView::Base:
@@field_error_proc = Proc.new{ |html_tag, instance|
"<div class=\"field_with_errors\">#{html_tag}</div>".html_safe
}
You can override it by...
How can I add new array elements at the beginning of an array in Javascript?
I have a need to add or prepend elements at the beginning of an array.
12 Answers
12
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Get exception description and stack trace which caused an exception, all as a string
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See the traceback module, specifically the format_exc() function. Here.
import traceback
try:
raise ValueError
except ValueError:
tb = traceback.format_exc()
else:
tb = "No error"
finally:
print tb
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How to avoid warning when introducing NAs by coercion
...avoid getting a warning when using as.numeric to convert a character vector.
4 Answers
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How to remove spaces from a string using JavaScript?
How to remove spaces in a string? For instance:
7 Answers
7
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creating list of objects in Javascript
...of your own objects in Javascript ? This is the type of data I want to store :
5 Answers
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Windows batch files: .bat vs .cmd?
... understand it, .bat is the old 16-bit naming convention, and .cmd is for 32-bit Windows, i.e., starting with NT. But I continue to see .bat files everywhere, and they seem to work exactly the same using either suffix. Assuming that my code will never need to run on anything older than NT, does ...
Why can lambdas be better optimized by the compiler than plain functions?
... them to a function template will instantiate a new function specifically for that object. The compiler can thus trivially inline the lambda call.
For functions, on the other hand, the old caveat applies: a function pointer gets passed to the function template, and compilers traditionally have a lo...
Shrink a YouTube video to responsive width
...uTube video embedded on our website and when I shrink the screen to tablet or phone sizes it stops shrinking at around 560px in width. Is this standard for YouTube videos or is there something that I can add to the code to make it go smaller?
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Any way to declare an array in-line?
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Just for future reference, this type of array is known as an anonymous array (as it has no name). searching "Anonymous array java" would've produced some results.
– Falaina
Jul 20 '09 at 14:55...