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What does the exclamation mark mean in a Haskell declaration?
...ause you can't look inside it without it existing). The first, since we're testing it, we need to evaluate all the way to 4, where we realize it doesn't match.
The second doesn't need to be evaluated, because we're not testing it. Thus, rather than 6 being stored in that memory location, we'll just...
Performance of static methods vs instance methods
... Static methods can't be mocked, If you do TDD or even just unit testing this will hurt your tests a lot.
– trampster
Mar 24 '17 at 10:33
...
Docker EXPOSE a port only to Host
...] docker run -p 27017:27017 -v /var/lib/mongodb/master:/data mongo:storage_test /usr/bin/start-mongo [2] docker run -p 127.0.0.1:27017:27017 ...?
– Ruben
Feb 28 '14 at 16:41
...
What does mvn install in maven exactly do
...he mvn is as below: LifeCycle Bindings
process-resources
compile
process-test-resources
test-compile
test
package
install
deploy
The test phase of this mvn can be ignored by using a flag -DskipTests=true.
share
...
What are the advantages of NumPy over regular Python lists?
..., histograms, etc. And really, who can live without FFTs?
Speed: Here's a test on doing a sum over a list and a NumPy array, showing that the sum on the NumPy array is 10x faster (in this test -- mileage may vary).
from numpy import arange
from timeit import Timer
Nelements = 10000
Ntimeits = 100...
What is the difference between D3 and jQuery?
...nsider underscore.js. If you want something with dependency injection and testability, consider AngularJS.
A General comparison guide from wikipedia.
I can see why someone would think they are similar. They use a similar selector syntax -- $('SELECTOR'), and d3 is an extremely powerful tool for s...
A fast method to round a double to a 32-bit int explained
...s for numbers with absolute value < 2 ^ 51.
This is a little program to test it: ideone.com
#include <cstdio>
int main()
{
// round to nearest integer
printf("%.1f, %.1f\n", rint(-12345678.3), rint(-12345678.9));
// test tie-breaking rule
printf("%.1f, %.1f, %.1f, %.1f\n",...
What does “1 line adds whitespace errors” mean when applying a patch?
...m editing some markdown files of a cloned remote repository, and wanted to test creating and applying patches from one branch to another. However, every time I make any change at all, I get the following message during git apply :
...
Cannot push to Git repository on Bitbucket
.../.ssh/config
$ echo " IdentityFile ~/.ssh/id_rsa" >> ~/.ssh/config
Confirm the contents:
$ cat ~/.ssh/config
Host bitbucket.org
IdentityFile ~/.ssh/id_rsa
The single space before "IdentityFile" is required.
Check you are starting the SSH agent every time you run GitBash:
$ cat ~/.ba...
A gentle tutorial to Emacs/Swank/Paredit for Clojure
...tures are available.
Note: the autodoc feature of SLIME as found in the latest upstream sources is incompatible with swank-clojure -- this problem won't come up if you follow Phil Hagelberg's recommendation to use the ELPA version (see his aforementioned blog post for an explanation) or simply leav...