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Determine if Python is running inside virtualenv
...nside a virtual environment, sys.prefix points to the virtual environment, and sys.base_prefix is the prefix of the system Python the virtualenv was created from.
The above always works for Python 3 stdlib venv and for recent virtualenv (since version 20). Older versions of virtualenv used sys.real_...
MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
What is main difference between INSERT INTO table VALUES .. and INSERT INTO table SET ?
3 Answers
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For..In loops in JavaScript - key value pairs
...or...of documentation
Destructuring assignment documentation
Enumerability and ownership of properties documentation
Hope it helps! =)
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What exactly is metaprogramming?
... eval("x" + i). DoSomething() would affect an object called x1 when i is 1 and x2 when i is 2.
Finally, another common form of metaprogramming is when the program can change itself in non-trivial fashions. LISP is well known for this and is something Paul Graham championed about a decade ago. I'll ...
$.ajax - dataType
...ct.
Expecting JSON, or XML, or HTML, etc. The default is for jQuery to try and figure it out.
The $.ajax() documentation has full descriptions of these as well.
In your particular case, the first is asking for the response to be in UTF-8, the second doesn't care. Also the first is treating the...
Setting Environment Variables for Node to retrieve
I'm trying to follow a tutorial and it says:
16 Answers
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ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired
...cked by some query. For example, you may have executed "select for update" and have not yet committed/rollbacked and fired another select query. Do a commit/rollback before executing your query.
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How do getters and setters work?
I'm from the php world. Could you explain what getters and setters are and could give you some examples?
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Force add despite the .gitignore file
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Well, I tested it to make sure it really works and it does. Can you describe your environemnt (OS, git version ...)? This is what I've basically done: echo "/foo" >> .gitignore; echo "bar" > foo; git add foo # should throw an error; git add -p foo # works (cannot...
Google Maps: Auto close open InfoWindows?
...se() function for InfoWindows. Just keep track of the last opened window, and call the close function on it when a new window is created.
This demo has the functionality you're looking for. I found it in the Maps API V3 demo gallery.
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