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When to use nil, blank, empty? [duplicate]
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How do I unload (reload) a Python module?
...r process itself.
To quote from the docs:
Python modules’ code is recompiled and
the module-level code reexecuted,
defining a new set of objects which
are bound to names in the module’s
dictionary. The init function of
extension modules is not called a
second time. As with all o...
How to delete or add column in SQLITE?
...QLite
SQLite supports a limited subset of ALTER TABLE. The ALTER TABLE command in SQLite allows the user to rename a table or to add a new column to an existing table. It is not possible to rename a column, remove a column, or add or remove constraints from a table.
You can:
create new table...
Effective method to hide email from spam bots
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community wiki
4 revscyptus
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How do I undo 'git add' before commit?
I mistakenly added files to Git using the command:
36 Answers
36
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How is Docker different from a virtual machine?
...d only part and a write part which are merged together. One could have the common parts of the operating system as read only (and shared amongst all of your containers) and then give each container its own mount for writing.
So, let's say you have a 1 GB container image; if you wanted to use a ful...
How do I get the path and name of the file that is currently executing?
...erent environments. Consider accepting Usagi's answer below: stackoverflow.com/a/6628348/851398
– faraday
Mar 5 '14 at 7:41
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NUnit Test Run Order
...e these attributes, this is an interesting blog post- jamesnewkirk.typepad.com/posts/2007/09/why-you-should-.html. Nice point about category tests though.
– RichardOD
Jul 3 '09 at 13:43
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NoSQL (MongoDB) vs Lucene (or Solr) as your database
...eadway and summarize this in an excellent slide-deck, but they too are non-committal on totally jumping on Solr bandwagon and "investigating" combining Solr with CouchDB.
Finally, I will offer our experience, unfortunately cannot reveal much about the business-case. We work on the scale of several ...
How can I repeat a character in Bash?
...:
printf '=%.0s' {1..100}
How this works:
Bash expands {1..100} so the command becomes:
printf '=%.0s' 1 2 3 4 ... 100
I've set printf's format to =%.0s which means that it will always print a single = no matter what argument it is given. Therefore it prints 100 =s.
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