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Difference between Statement and PreparedStatement
...tement. This design forces you to work against interfaces so you needn't know the specific implementation classes and to avoid unnecessary tight-coupling with such implementation classes. All explained with examples in the Java jdbc docs & Java docs. :)
– Glen Best
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How to find time complexity of an algorithm
...y 2.
For this reason, we drop all but the largest terms for large N.
So, now we have gone from 2N + 2 to 2N.
Traditionally, we are only interested in performance up to constant factors.
This means that we don't really care if there is some constant multiple of difference in performance when N i...
Is Ruby pass by reference or by value?
... Ruby is pass-by-value. No ifs. No buts. No exceptions. If you want to know whether Ruby (or any other language) is pass-by-reference or pass-by-value, just try it out: def foo(bar) bar = 'reference' end; baz = 'value'; foo(baz); puts "Ruby is pass-by-#{baz}".
– Jörg W Mitt...
How can we make xkcd style graphs?
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This is fantastic! Now if only there was a way to have element_line take a jitter argument to work it into themes...that would seal the deal, I think.
– jebyrnes
Oct 3 '12 at 15:04
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Proper package naming for testing with the Go language
... several different test package naming strategies within Go and wanted to know what pros and cons of each are and which one I should use.
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Can I run javascript before the whole page is loaded?
...t>
<p>Paragraph 2</p>
Notice how they're both green now; the code didn't run until HTML parsing was complete. That would also be true with a defer script with external content (but not inline content).
(There was no need for the NodeList check there because any modern browser...
Declaring a custom android UI element using XML
...or refuses to use the values for all android: attributes. I would like to know if it is a feature or bug
– deej
Mar 28 '13 at 0:17
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Compare two DataFrames and output their differences side-by-side
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df_final = df_all.swaplevel(axis='columns')[df.columns[1:]]
df_final
Now, its much easier to spot the differences in the frames. But, we can go further and use the style property to highlight the cells that are different. We define a custom function to do this which you can see in this part of...
Truncating long strings with CSS: feasible yet?
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Update: text-overflow: ellipsis is now supported as of Firefox 7 (released September 27th 2011). Yay! My original answer follows as a historical record.
Justin Maxwell has cross browser CSS solution. It does come with the downside however of not allowing the ...
Is there a read-only generic dictionary available in .NET?
...d too, but at least with the interface it shouldn't be difficult to create now an implementation which exposes an official .NET generic interface :)
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