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What is non-blocking or asynchronous I/O in Node.js?
...ation, while alert(2) appears to execute second, it doesn't.
Synchronous: 1,2,3
alert(1);
alert(2);
alert(3);
Asynchronous: 1,3,2
alert(1);
setTimeout(() => alert(2), 0);
alert(3);
Blocking vs Non-blocking
Blocking refers to operations that block further execution un...
“new” keyword in Scala
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145
Use the new keyword when you want to refer to a class's own constructor:
class Foo { }
val f...
jquery append to front/top of list
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answered Jan 22 '09 at 15:45
dasonydasony
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How can the Euclidean distance be calculated with NumPy?
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931
Use numpy.linalg.norm:
dist = numpy.linalg.norm(a-b)
You can find the theory behind this in I...
Is it a good idea to index datetime field in mysql?
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172
MySQL recommends using indexes for a variety of reasons including elimination of rows between ...
Difference between sampling and profiling in jVisualVM
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1 Answer
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How to create an instance of anonymous class of abstract class in Kotlin?
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1 Answer
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ipython: print complete history (not just current session)
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165
In ipython enter:
%history -g
It does not print time codes but it does print session/line n...
Why were pandas merges in python faster than data.table merges in R in 2012?
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120
It looks like Wes may have discovered a known issue in data.table when the number of unique st...
Is it better to use std::memcpy() or std::copy() in terms to performance?
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211
I'm going to go against the general wisdom here that std::copy will have a slight, almost imper...