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How can you do anything useful without mutable state?
...numerate through the collection and invoke the anonymous function for each item. Very handy :)
I know, printing numbers isn't exactly impressive. However, we can use the same approach with games: hold all state in the stack and create a new object with our changes in the recursive call. In this way...
MySQL Creating tables with Foreign Keys giving errno: 150
...renced columns in the Parent table must be the left-most columns of a key. Best if the key in the Parent is PRIMARY KEY or UNIQUE KEY.
The FK definition must reference the PK column(s) in the same order as the PK definition. For example, if the FK REFERENCES Parent(a,b,c) then the Parent's PK must n...
How do you reverse a string in place in JavaScript?
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#1 is best, #2 could be horribly slow
– adamJLev
Jul 15 '10 at 16:42
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Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?
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Sphinx does allow you to update individual attributes of items in current indexes, but not remove/update full records.
– Xorlev
Feb 21 '10 at 2:17
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Escaping a forward slash in a regular expression
...hen escaping isn't necessary. As a matter of fact, Damian Conway in "Perl Best Practices" asserts that m{} is the only alternate delimiter that ought to be used, and this is reinforced by Perl::Critic (on CPAN). While you can get away with using a variety of alternate delimiter characters, // and ...
Why does Lua have no “continue” statement?
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In Lua 5.2 the best workaround is to use goto:
-- prints odd numbers in [|1,10|]
for i=1,10 do
if i % 2 == 0 then goto continue end
print(i)
::continue::
end
This is supported in LuaJIT since version 2.0.1
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Strengths of Shell Scripting compared to Python [closed]
...e things that are easy in shell but hard in Python). Knowing both will be best in the long term.
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How can I close a Twitter Bootstrap popover with a click from anywhere (else) on the page?
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This is the best answer IMO.
– Loolooii
Mar 22 '13 at 18:17
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Rails: How can I set default values in ActiveRecord?
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This definitely appears to be the best way to achieve this. Which is really odd and unfortunate. A sensible preferred method for establishing model attribute defaults upon creation seems like something Rails should already have built in. The only other (relia...
Intelligent point label placement in R
.... OK, I accept this solution, although I think the computer should do this best first AND THEN request manual intervention. Here I'm looking for most comfortable and fast solution. Could you please describe how you made the plot, step by step? What you generated in R, export, moving the labels in Pr...