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Java ArrayList how to add elements at the beginning
...on will probably need a time and space complexity of O(n)
Deque
The JDK includes the Deque structure which offers methods like addFirst(e) and offerFirst(e)
Deque<String> deque = new LinkedList<>();
deque.add("two");
deque.add("one");
deque.addFirst("three");
//prints "three", "two",...
Express.js req.body undefined
...e(). In my case this was in the form of app.get/post etc, and a require() including them.
– bendman
Feb 24 '13 at 21:18
1
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Can't execute jar- file: “no main manifest attribute”
...)
jar cmvf META-INF/MANIFEST.MF <new-jar-filename>.jar <files to include>
For Maven, something like the following snippet should do the trick. Note that this is only the plugin definition, not the full pom.xml:
<build>
<plugins>
<plugin>
<!-- Build an e...
How do I initialize the base (super) class?
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Transform DateTime into simple Date in Ruby on Rails
...ate() method. That will tell you the module it's in, which you could then include for DateTime objects in your code
– Eric Hu
Oct 19 '11 at 22:09
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Load “Vanilla” Javascript Libraries into Node.js
... Just found your answer (making a multiplayer game and needed to include JigLibJS, our physics engine, on the server as well as the client) you saved me a LOT of time and hassle. Thank you!
– stevendesu
Mar 29 '12 at 17:36
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Select all DIV text with single mouse click
...en(
document.getElementById(id)
);
This works on all modern browsers including IE9+ (in standards mode).
Runnable Example:
function select(id) {
window.getSelection()
.selectAllChildren(
document.getElementById("target-div")
);
}
#outer-div { padding: 1rem; backgr...
How to take column-slices of dataframe in pandas
...The labels being the values of the index or the columns. Slicing with .loc includes the last element.
Let's assume we have a DataFrame with the following columns:
foo, bar, quz, ant, cat, sat, dat.
# selects all rows and all columns beginning at 'foo' up to and including 'sat'
df.loc[:, 'fo...
C++ compiling on Windows and Linux: ifdef switch [duplicate]
...+ code on Linux and Windows. There are some pieces of code that I want to include only for one operating system and not the other. Is there a standard #ifdef that once can use?
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git diff renamed file
...ll an from /dev/null in a file that was renamed and has changed entirely (including indent wise), it doesn't even catch it when ignoring whitespace.
– DavidG
Apr 12 '13 at 15:11
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