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What are MVP and MVC and what is the difference?
...ilding user interfaces that many tools encourage you are likely to come across three design patterns called Model-View-Controller , Model-View-Presenter and Model-View-ViewModel . My question has three parts to it:
...
How do I style a dropdown with only CSS?
...right-hand-side of the div.
The advantage of this approach is that it is cross-browser (Internet Explorer 8 and later, WebKit, and Gecko). However, the disadvantage of this approach is that the options drop-down juts out on the right-hand-side (by the 20 pixels which we hid... because the option e...
Client-server synchronization pattern / algorithm?
...at how distributed change management works. Look at SVN, CVS and other repositories that manage deltas work.
You have several use cases.
Synchronize changes. Your change-log (or delta history) approach looks good for this. Clients send their deltas to the server; server consolidates and distri...
Constant Amortized Time
...e last enlarge. But you've also waited twice as long before doing it! The cost of each enlargement can thus be "spread out" among the insertions. This means that in the long term, the total time taken for adding m items to the array is O(m), and so the amortised time (i.e. time per insertion) is O(1...
Java 8 Streams: multiple filters vs. complex condition
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@Juan Carlos Diaz: no, streams don’t work that way. Read about “lazy evaluation”; intermediate operations don’t do anything, they only alter the outcome of the terminal operation.
– Holger
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What is the fastest integer division supporting division by zero no matter what the result is?
...metic and the use of condition flags are invented in hardware for this purpose. In general condition flags are only accessible in C through using idiom. That is why it so hard to make a portable multiple precision integer library in C without resorting to (inline) assembly. My guess is that most dec...
How line ending conversions work with git core.autocrlf between different operating systems
...at I am aware):
core.autocrlf = true
Text files checked-out from the repository that have only LF characters are normalized to CRLF in your working tree; files that contain CRLF in the repository will not be touched
Text files that have only LF characters in the repository, are normalized from CR...
docker mounting volumes on host
...ainer and store any files created or edited inside that directory on your hosts disk outside the container file structure, bypassing the union file system.
The idea is that your volumes can be shared between your docker containers and they will stay around as long as there's a container (running or...
How Python web frameworks, WSGI and CGI fit together
I have a Bluehost account where I can run Python scripts as CGI. I guess it's the simplest CGI, because to run I have to define the following in .htaccess :
...
Is R's apply family more than syntactic sugar?
... sapply function in snow:
library(snow)
cl <- makeSOCKcluster(c("localhost","localhost"))
parSapply(cl, 1:20, get("+"), 3)
This example uses a socket cluster, for which no additional software needs to be installed; otherwise you will need something like PVM or MPI (see Tierney's clustering pag...