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Python: Tuples/dictionaries as keys, select, sort
...e your fruitcount dict:
>>> fruitcount = {Fruit("banana", "red"):5}
>>> fruitcount[f]
5
Other tricks:
>>> fruits = fruitcount.keys()
>>> fruits.sort()
>>> print fruits
[Fruit(name='apple', color='green'),
Fruit(name='apple', color='red'),
Fruit(na...
Why is XOR the default way to combine hashes?
...andom (1-bit) inputs, the AND function output probability distribution is 75% 0 and 25% 1. Conversely, OR is 25% 0 and 75% 1.
The XOR function is 50% 0 and 50% 1, therefore it is good for combining uniform probability distributions.
This can be seen by writing out truth tables:
a | b | a AND b
-...
jQuery Set Cursor Position in Text Area
...
256
I have two functions:
function setSelectionRange(input, selectionStart, selectionEnd) {
if (...
Can I run javascript before the whole page is loaded?
...
T.J. CrowderT.J. Crowder
825k153153 gold badges15121512 silver badges15541554 bronze badges
...
How do I represent a hextile/hex grid in memory?
...
156
Amit Patel has posted an amazing page on this topic. It's so comprehensive and wonderful that i...
MongoDB Many-to-Many Association
...
95
Depending on your query needs you can put everything in the user document:
{name:"Joe"
,roles:[...
How do I generate random numbers in Dart?
...
timlyo
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answered Jul 26 '12 at 17:33
Seth LaddSeth Ladd
...
Difference between WebStorm and PHPStorm
... only be available in WebStorm v9 (quite few months from now, lets say 2-3-5) -- if using/comparing stable versions ONLY.
UPDATE (2016-12-13):
Since 2016.1 version PhpStorm and WebStorm use the same version/build numbers .. so there is no longer difference between the same versions: functionality p...
MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start
I have been running MAMP Pro 3.05 successfully in Yosemite up to DP4 on a partition that was a clean install of Yosemite.
1...
Oracle Differences between NVL and Coalesce
...CT BY
level <= 10000
)
This runs for almost 0.5 seconds, since it generates SYS_GUID()'s, despite 1 being not a NULL.
SELECT SUM(val)
FROM (
SELECT COALESCE(1, LENGTH(RAWTOHEX(SYS_GUID()))) AS val
FROM dual
CONNECT BY
leve...