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Why does Java's hashCode() in String use 31 as a multiplier?
...rved as a bad example for many programmers when writing their own hashCode functions.
– Hans-Peter Störr
May 12 '10 at 7:42
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Installing multiple instances of the same windows service on a server
... application and everything is going great. The client has come up with a fun configuration request that requires two instances of this service running on the same server and configured to point at separate databases.
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How to increase space between dotted border dots
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Applied to small elements with big rounded corners may make for some fun effects.
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NERDTree reload new files
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You can hit R button by using feedkeys function. Just like this:
call feedkeys("R")
I have defined a function in my .vimrc file:
fun! ToggleNERDTreeWithRefresh()
:NERDTreeToggle
if(exists("b:NERDTreeType") == 1)
call feedkeys("R")
e...
How do you check if a variable is an array in JavaScript? [duplicate]
... test: http://jsperf.com/instanceof-array-vs-array-isarray/35 So have some fun and check it out.
Note: @EscapeNetscape has created another test as jsperf.com is down. http://jsben.ch/#/QgYAV I wanted to make sure the original link stay for whenever jsperf comes back online.
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Getting a map() to return a list in Python 3.x
...t for using 3.1's map would be lazy evaluation when iterating on a complex function, large data sets, or streams.
– Andrew Keeton
Aug 20 '09 at 0:45
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How to escape single quotes within single quoted strings
...aped single quote and reopens the string.
I often whip up a "quotify" function in my Perl scripts to do this for me. The steps would be:
s/'/'\\''/g # Handle each embedded quote
$_ = qq['$_']; # Surround result with single quotes.
This pretty much takes care of all cases.
Life gets more...
Number of lines in a file in Java
...s takes 0.35 seconds, versus 2.40 seconds when using readLines(). Just for fun, linux' wc -l command takes 0.15 seconds.
public static int countLinesOld(String filename) throws IOException {
InputStream is = new BufferedInputStream(new FileInputStream(filename));
try {
byte[] c = ne...
How to convert a clojure keyword into a string?
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I cannot imagine a more complete answer, but just for fun I shall dare someone to come up with it.
– Hamish Grubijan
Sep 15 '10 at 15:55
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Should I call Close() or Dispose() for stream objects?
...YI here's an article on the MSDN blogs that explains the Close and Dispose fun. blogs.msdn.com/b/kimhamil/archive/2008/03/15/…
– JamieSee
Apr 16 '15 at 23:17
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