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How to append something to an array?
...much this has changed in the past four years. (jsperf would be handy right now.)
– Paul Draper
May 26 '14 at 20:07
...
Fastest way to list all primes below N
...tmp) )//const
del_mult(tmptk[off], start, prime)
# now we go back to top tk1, so we need to increase pos by 1
pos += 1
cpos = const * pos
# 30k + 1
if tk1[pos]:
prime = cpos + 1
p.append(prime)
lastadded = 1
...
How to prevent browser page caching in Rails
...
use:
expires_now()
http://api.rubyonrails.org/classes/ActionController/ConditionalGet.html#method-i-expires_now
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Is Unit Testing worth the effort? [closed]
...attempt!
Unit Tests allows you to make big changes to code quickly. You know it works now because you've run the tests, when you make the changes you need to make, you need to get the tests working again. This saves hours.
TDD helps you to realise when to stop coding. Your tests give you confiden...
How do I focus on one spec in jasmine.js?
...
//...
})
it('function 2', function() {
//...
}
})
Now you can run just the whole spec by this url http://localhost:8888?spec=MySpec and a the first test with http://localhost:8888?spec=MySpec+function+1
...
How do I manage conflicts with git submodules?
... for the subby submodule, when you merge changes from master git does not know which ref - v1.0 or v1.1 - should be kept and tracked by the one.one branch of supery.
If that is the case, then you need to select the ref that you want and commit that change to resolve the conflict. Which is exactly w...
Cross compile Go on OSX?
...eem to have improved the cross compilation process, meaning it is built in now. No ./make.bash-ing or brew-ing required. The process is described here but for the TLDR-ers (like me) out there: you just set the GOOS and the GOARCH environment variables and run the go build.
For the even lazier copy...
Extract date (yyyy/mm/dd) from a timestamp in PostgreSQL
...estamp;
timestamp
---------------------
2010-01-01 12:00:00
Now we'll cast it to a date:
wconrad=# select '2010-01-01 12:00:00'::timestamp::date;
date
------------
2010-01-01
On the other hand you can use date_trunc function. The difference between them is that the latter ...
Nested Git repositories?
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The blog seems to work fine now, and unfortunately for sage, the 34 (now 35) up-votes on the comment seems to agree that there is a value in the blog article. Turns out you don't have to sacrifice accuracy for clarity and operation-specific advice. Afte...
Remove spaces from std::string in C++
...ithm remove_if and isspace:
remove_if(str.begin(), str.end(), isspace);
Now the algorithm itself can't change the container(only modify the values), so it actually shuffles the values around and returns a pointer to where the end now should be. So we have to call string::erase to actually modify ...