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Checking for empty queryset in Django
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Why don't C++ compilers define operator== and operator!=?
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13 Answers
13
Active
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How do I catch an Ajax query post error?
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310
Since jQuery 1.5 you can use the deferred objects mechanism:
$.post('some.php', {name: 'John'}...
Updating packages in Emacs
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165
In order to automatically update the list of packages, only if there is no package list alrea...
How Do I Fetch All Old Items on an RSS Feed?
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10
As the other replies here mentioned, a feed may not provide archival data but historical items ...
extra qualification error in C++
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211
This is because you have the following code:
class JSONDeserializer
{
Value JSONDeserializ...
“for” vs “each” in Ruby
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316
This is the only difference:
each:
irb> [1,2,3].each { |x| }
=> [1, 2, 3]
irb> x
N...
How to Set Opacity (Alpha) for View in Android
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12 Answers
12
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Prevent wrapping of span or div
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186
Try this:
.slideContainer {
overflow-x: scroll;
white-space: nowrap;
}
.slide...
How to get VM arguments from inside of Java application?
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185
With this code you can get the JVM arguments:
import java.lang.management.ManagementFactory;
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