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SparseArray vs HashMap
...id source code
In terms of memory, here is an example of SparseIntArray vs HashMap<Integer, Integer> for 1000 elements:
SparseIntArray:
class SparseIntArray {
int[] keys;
int[] values;
int size;
}
Class = 12 + 3 * 4 = 24 bytes
Array = 20 + 1000 * 4 = 4024 bytes
Total = 8,072...
In Python, what is the difference between “.append()” and “+= []”?
...mance: append is twice as fast.
Python 3.0 (r30:67507, Dec 3 2008, 20:14:27) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import timeit
>>> timeit.Timer('s.append("something")', 's = []').timeit()
0.20177424499999...
When to favor ng-if vs. ng-show/ng-hide?
...
The answer is not simple:
It depends on the target machines (mobile vs desktop), it depends on the nature of your data, the browser, the OS, the hardware it runs on... you will need to benchmark if you really want to know.
It is mostly a memory vs computation problem ... as with most perform...
Differences between socket.io and websockets
...between WebSocket and Socket.IO:
https://www.npmjs.com/package/websocket-vs-socket.io
https://github.com/rsp/node-websocket-vs-socket.io
It is a simple example of server-side and client-side code - the client connects to the server using either WebSocket or Socket.IO and the server sends three m...
What is the usefulness of PUT and DELETE HTTP request methods?
...
answered Aug 27 '12 at 13:20
GordonGordon
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IPN vs PDT in Paypal
...'t guarantee message delivery. Here is link to doc covering that topic PDT vs IPN.
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MSBuild doesn't copy references (DLL files) if using project dependencies in solution
... contain any code that explicitly uses assembly B (e.g. B.SomeFunction()), VS/MSBuild doesn't detect that B is required by X, and thus doesn't copy it over into project Y's bin directory; it only copies the X and A assemblies.
Solution
You have two options to solve this problem, both of which will...
How do I enable file editing in Visual Studio's debug mode?
...ortunately this solution has not solved for me in this situation (am using VS2013)
– Radderz
Jul 31 '14 at 12:19
18
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Multiline strings in VB.NET
...t;.vb file with above trick syntax in it>) ... Any ideas? Is this just VS 2010 syntactic sugar?
– Chad
Jun 4 '12 at 2:37
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When to use Vanilla JavaScript vs. jQuery?
...the help.
– Phrogz
Jan 10 '11 at 22:27
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