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Inputting a default image in case the src attribute of an html is not valid?
...body>
</html>
Since the first image doesn't exist, the fallback (the sprites used on this web site*) will display. And if you're using a really old browser that doesn't support object, it will ignore that tag and use the img tag. See caniuse website for compatibility. This element...
How to “pretty” format JSON output in Ruby on Rails
... the code above in a controller, you'll have tons of useless whitespace in all responses, which isn't even needed for client-side debugging as any tools worth their salt (eg. Firebug) already handle prettyprinting JSON.
– lambshaanxy
Sep 20 '11 at 3:37
...
“Cloning” row or column vectors
...he result contain a single distinct element each.
– BallpointBen
Apr 13 '18 at 21:11
This should be the accepted answe...
Hidden Features of Xcode 4
Now that Xcode 4 is officially released it's time for a follow up to my previous question: Hidden Features of Xcode
23 Ans...
Google Developer Tools “Network” Tab clears after redirect
...er redirect to another page and i want to know if there is any way to keep all request?
1 Answer
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Why is vertical-align: middle not working on my span or div?
I'm trying to vertically center a span or div element within another div element. However when I put vertical-align: middle , nothing happens. I've tried changing the display properties of both elements, and nothing seems to work.
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Why doesn't std::queue::pop return value.?
... T pop()
{
auto x = elements[top_position];
// TODO: call destructor for elements[top_position] here
--top_position; // alter queue state here
return x; // calls T(const T&) which may throw
}
If the copy constructor of T throws on return, you ha...
Can one do a for each loop in java in reverse order?
...
The Collections.reverse method actually returns a new list with the elements of the original list copied into it in reverse order, so this has O(n) performance with regards to the size of the original list.
As a more efficient solution, you could write a deco...
List files committed for a revision
...es for that particular revision, adding username instead of revision lists all files and revisions for the user svn log --verbose --username 'username'
– Satish
Jun 9 '11 at 16:58
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Order Bars in ggplot2 bar graph
...rder. If left unspecified, the levels of a factor will be sorted alphabetically. You can also specify the level order within the call to factor as above, and other ways are possible as well.
theTable$Position <- factor(theTable$Position, levels = c(...))
...