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What does the exclamation mark mean in a Haskell declaration?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Install a Python package into a different directory using pip?
...r this example):
export PYTHONPATH=/opt/mysterypackage-1.0/python-deps/lib64/python2.6/site-packages:$PYTHONPATH
export PATH=/opt/mysterypackage-1.0/python-deps/bin:$PATH
Using virtualenv is still a better and neater solution!
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How to prevent browser page caching in Rails
...ler.rb
After Rails 5:
class ApplicationController < ActionController::Base
before_action :set_cache_headers
private
def set_cache_headers
response.headers["Cache-Control"] = "no-cache, no-store"
response.headers["Pragma"] = "no-cache"
response.headers["Expires"] = "Mon, 01 ...
What's the difference between the data structure Tree and Graph?
...fference between the data structure Tree and Graph? And how about the tree based search and Graph based search?
10 Answers
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How does Stack Overflow generate its SEO-friendly URLs?
...ff’s the logic for this is easy to follow.
His approach is purely lookup based and missed a lot of characters I found in examples while researching on Stack Overflow. To counter this, I first peform a normalisation pass (AKA collation mentioned in Meta Stack Overflow question Non US-ASCII charact...
Access denied for user 'root@localhost' (using password:NO)
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no you cant.. mysql will not start: c:\wamp64\bin\mysql\mysql5.7.23\bin>mysql ERROR 1045 (28000): Access denied for user 'ODBC'@'localhost' (using password: NO)
– Jaxx0rr
Dec 19 '18 at 19:44
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What is the difference (if any) between Html.Partial(view, model) and Html.RenderPartial(view,model)
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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What is the difference between Session.Abandon() and Session.Clear()
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RaYellRaYell
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What is the best method of handling currency/money?
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You'll probably want to use a DECIMAL type in your database. In your migration, do something like this:
# precision is the total number of digits
# scale is the number of digits to the right of the decimal point
add_column :items, :price, :decimal, :precision => 8, :scale =&g...
What is memory fragmentation?
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Interestingly, main memory databases are becoming somewhat practical these days (with really much memory being available). In this context it is worth noting that, as for HDDs, reading continuous lines from RAM is much faster than if the data is fragmented...