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How to “EXPIRE” the “HSET” child key in redis?
...erested in but they have the same hash slot. We could actually write a Lua script to do those steps in the server by executing an EVAL or EVALSHA command. Again, you need to take into consideration the performance of this approach for your particular scenario.
Some more references:
https://redis....
matplotlib.pyplot will not forget previous plots - how can I flush/refresh?
...
I discovered that this behaviour only occurs after running a particular script, similar to the one in the question. I have no idea why it occurs.
It works (refreshes the graphs) if I put
plt.clf()
plt.cla()
plt.close()
after every plt.show()
...
Get all directories within directory nodejs
...
Thanks to JavaScript ES6 (ES2015) syntax features it's one liner:
Synchronous version
const { readdirSync, statSync } = require('fs')
const { join } = require('path')
const dirs = p => readdirSync(p).filter(f => statSync(join(p, f...
How do I remove files saying “old mode 100755 new mode 100644” from unstaged changes in Git?
... is that if you do have any files you want to keep executable, such as .sh scripts, you'll need to revert those. You can do that with the following command for each file:
chmod +x ./build.sh # where build.sh is the file you want to make executable again
...
Git Server Like GitHub? [closed]
...
I've found the relatively new single script setup for Ubuntu to be pretty pain free. Even without it it's mostly a matter of following the instructions off the site. I've never used rails or really even Ubuntu server and I got it running first try.
...
Which is more preferable to use: lambda functions or nested functions ('def')?
...
For n=1000 here's some timeit's of calling a function vs a lambda:
In [11]: def f(a, b):
return a * b
In [12]: g = lambda x, y: x * y
In [13]: %%timeit -n 100
for a in xrange(n):
for b in xrange(n):
f(a, b)
....:
100 loops, best of 3: 285 ms per loop
In...
Is there a command line utility for rendering GitHub flavored Markdown?
...'your markdown string')
in your Ruby code. You can wrap that easily in a script to turn it into a command line utility:
#!/usr/bin/env ruby
# render.rb
require 'github/markdown'
puts GitHub::Markdown.render_gfm File.read(ARGV[0])
Execute it with ./render.rb path/to/my/markdown/file.md. Note t...
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position 2: ordinal not in range(128)
...ur Python code like this:
PYTHONIOENCODING="UTF-8" python3 ./path/to/your/script.py
or do
export PYTHONIOENCODING="UTF-8"
to set it in the shell you run that in.
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How do you do a deep copy of an object in .NET? [duplicate]
...lative performance difference (4.77 seconds for deep nested MemberwiseCopy vs. 39.93 seconds for Serialization). Using nested MemberwiseCopy is almost as fast as copying a struct, and copying a struct is pretty darn close to the theoretical maximum speed .NET is capable of, which is probably quite c...
How to Empty Caches and Clean All Targets Xcode 4 and later
...all derived data and the module cache in /var/folders use this little ruby script.
derivedDataFolder = Dir.glob(Dir.home + "/Library/Developer/Xcode/DerivedData/*")
moduleCache = Dir.glob("/var/folders/**/com.apple.DeveloperTools*")
FileUtils.rm_rf derivedDataFolder + moduleCache
This just solved...