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Get last result in interactive Python shell
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Just for the record, ipython takes this one step further and you can access every result with _ and its numeric value
In [1]: 10
Out[1]: 10
In [2]: 32
Out[2]: 32
In [3]: _
Out[3]: 32
In [4]: _1
Out[4]: 10
In [5]: _2
Out[5]: 32
In [6]: _1 + _2
Out[6]: 42
In [7]: _6
Out[7]: 42...
What does ^M character mean in Vim?
I keep getting ^M character in my vimrc and it breaks my configuration.
15 Answers
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What is the significance of #pragma marks? Why do we need #pragma marks?
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#pragma mark is used to tag the group of methods so you may easily find and detect methods from the Jump Bar. It may help you when your code files reach about 1000 lines and you want to find methods quickly through the category from Jump box.
In a long program it becomes difficult to remember an...
How do I deserialize a JSON string into an NSDictionary? (For iOS 5+)
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Thanks...this one helped! and +1
– Jayprakash Dubey
Jan 27 '14 at 9:07
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Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
...e '%02d' means to print an integer (d) taking up at least 2 characters (2) and left-padding with zeros instead of spaces (0).
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Adding two numbers concatenates them instead of calculating the sum
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out of curiousity (myself not a JavaScript programmer) (and I think this would improve the answer), what does the +-prefix do with strings?
– Sebastian Mach
Jan 24 '13 at 8:10
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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
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Thanks for the links! And thanks for the quick overview... My office is blocking the link for some reason :P but I'll check it out as soon as I get to a regular computer.
– froadie
Feb 11 '10 at 18:47
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Escaping keyword-like column names in Postgres
... named "select", whereas an unquoted select would be
taken as a key word and would therefore provoke a parse error when
used where a table or column name is expected.
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Format timedelta to string
...answered Feb 11 '09 at 20:52
ParandParand
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JavaScript ternary operator example with functions
...else syntax because I don't like to sacrifice readability - I'm old-school and I prefer my braces.
The full if/then/else format is used for pretty much everything. It's especially popular if you get into larger blocks of code in each branch, you have a muti-branched if/else tree, or multiple else/...