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Mapping over values in a python dictionary
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These toolz are great for this kind of simple yet repetitive logic.
http://toolz.readthedocs.org/en/latest/api.html#toolz.dicttoolz.valmap
Gets you right where you want to be.
import toolz
def f(x):
return x+1
toolz.valmap(f, my_list)
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require file as string
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you'll have to use readFile function from filesystem module.
http://nodejs.org/docs/v0.3.1/api/fs.html#fs.readFile
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How to find list intersection?
.../usr/bin/env python
''' Time list- vs set-based list intersection
See http://stackoverflow.com/q/3697432/4014959
Written by PM 2Ring 2015.10.16
'''
from __future__ import print_function, division
from timeit import Timer
setup = 'from __main__ import a, b'
cmd_lista = '[u for u in a if u ...
Is there any Rails function to check if a partial exists?
...or a partial (you can omit this argument if you want a regular template).
http://api.rubyonrails.org/classes/ActionView/LookupContext/ViewPaths.html#method-i-template_exists-3F
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How to structure a express.js application?
...iles.
Disclaimer: readdirSync is only ok when called before you start the http server (before .listen). Calling synchronious blocking calls at server start time just makes the code more readable (it's basically a hack)
var io = require("socket.io").listen(app);
io.set("authorization", fun...
Ruby: How to turn a hash into HTTP parameters?
...gt; ["c", "d", "e"]}.to_query)
=> "a=a&b[]=c&b[]=d&b[]=e"
http://api.rubyonrails.org/classes/Object.html#method-i-to_query
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Angular JS break ForEach
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There's no way to do this. See https://github.com/angular/angular.js/issues/263. Depending on what you're doing you can use a boolean to just not going into the body of the loop. Something like:
var keepGoing = true;
angular.forEach([0,1,2], function(coun...
In STL maps, is it better to use map::insert than []?
...rt operation gives a strong guarantee, means it doesn't have side effects (https://en.wikipedia.org/wiki/Exception_safety). insert is either completely done or it leaves the map in unmodified state.
http://www.cplusplus.com/reference/map/map/insert/:
If a single element is to be inserted, there...
How to create a self-signed certificate with OpenSSL
I'm adding HTTPS support to an embedded Linux device. I have tried to generate a self-signed certificate with these steps:
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In Flux architecture, how do you manage Store lifecycle?
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