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UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
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How to keep up with the latest versions of Node.js in Ubuntu? PPA? Compiling?
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You could also use tools like for example nvm which can help you install node and even have mult...
Why do you create a View in a database?
...ng tables. This allows surfacing only the data that a user needs to see.
3. Views can simplify supporting legacy code
If you need to refactor a table that would break a lot of code, you can replace the table with a view of the same name. The view provides the exact same schema as the original ta...
Alternatives to dispatch_get_current_queue() for completion blocks in iOS 6?
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Jacksonkr
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answered Nov 5 '12 at 19:07
Catfish_ManCatfi...
Why is it string.join(list) instead of list.join(string)?
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Nicolas Gervais
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answered Jan 29 '09 at 22:51
recursiverecursiv...
Insert picture/table in R Markdown [closed]
...s that are answered very directly in these tutorials.)
Update, 2019-Aug-31
Some time ago, pandoc incorporated "link_attributes" for images (apparently in 2015, with commit jgm/pandoc#244cd56). "Resizing images" can be done directly. For example:
![much-smaller image]...
How to get an object's properties in JavaScript / jQuery?
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edited Jun 13 '18 at 19:51
SOLO
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answered Nov 2 '10 a...
What does a just-in-time (JIT) compiler do?
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A JIT compiler runs after the program has started and compiles the code (usually bytecode or so...
What does void mean in C, C++, and C#?
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Basically it means "nothing" or "no type"
There are 3 basic ways that void is used:
Function argument: int myFunc(void)
-- the function takes nothing.
Function return value: void myFunc(int)
-- the function returns nothing
Generic data pointer: void* data
-- 'data' is a poi...
How is Racket different from Scheme?
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Racket is ultimately based on R5RS, and not R6RS and not a strict superset of either. I don't t...