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Cartesian product of multiple arrays in JavaScript
...b ? cartesian(f(a, b), ...c) : a);
Special thanks to ZuBB for letting me know about linter problems with the original code.
Update 2020:
Since I wrote this answer we got even better builtins, that can finally let us reduce (no pun intended) the code to just 1 line!
const cartesian =
(...a) => ...
How to return result of a SELECT inside a function in PostgreSQL?
I have this function in PostgreSQL, but I don't know how to return the result of the query:
2 Answers
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Database design for audit logging
...
I don't know of any reference, but I'm sure someone has written something.
However, if the purpose is simply to have a record of what happened—the most typical use of an audit log—then why not simply keep everything:
timestamp
u...
Migrating from JSF 1.2 to JSF 2.0
...ith a rather large app written in JSF 1.2 .
JSF 1.2 is around 6 years old now. I need to upgrade to JSF 2.0. How painful will this be? I noticed that some attributes in custom tags have been changed etc.
...
Difference between a theta join, equijoin and natural join
... that the resultset has six columns and only contains one column for SNO.
Now consider a theta eqijoin, where the column names for the join must be explicitly specified (plus range variables S and SP are required):
SELECT * FROM S JOIN SP ON S.SNO = SP.SNO;
The resultset will have seven columns,...
How do I get the current GPS location programmatically in Android?
...n while you move, but if you want just one time, you need to call "getLastKnownLocation()"
– swiftBoy
May 6 '14 at 4:35
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What are the rules about using an underscore in a C++ identifier?
...itional type names.
While using these names for your own purposes right now might not cause a problem, they do raise the possibility of conflict with future versions of that standard.
Personally I just don't start identifiers with underscores. New addition to my rule: Don't use double undersco...
In Matlab, when is it optimal to use bsxfun?
...viously, this functionality was available via the bsxfun function.
It is now recommended that you replace most uses of bsxfun with direct
calls to the functions and operators that support implicit expansion.
Compared to using bsxfun, implicit expansion offers faster speed,
better memory usag...
What is Cache-Control: private?
... sort of caching hints:
they forgot to include Expires, so the browser knows to use the cached copy until that date
they forgot to include Max-Age, so the browser knows how long the cached item is good for
they forgot to include E-Tag, so the browser can do a conditional request
But they did in...
Differences between git remote update and fetch?
...Original answer with more details
xenoterracide's answer is 3.5 years old now, and Git has gone through several versions since then (it has gone from v1.6.5.5 to v1.8.3.2 as of this writing), and looking at the current documentation for git remote update and git fetch, it looks like they both can p...