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Best way to give a variable a default value (simulate Perl ||, ||= )
... as you can add more conditions and assign to another variable in the same time
$foo = (isset($oData['foo']))?$bar['foo']:'default value';
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NoSQL - MongoDB vs CouchDB [closed]
...documents are available
Crash-only (reliable) design
Needs compacting from time to time
Views: embedded map/reduce
Formatting views: lists & shows
Server-side document validation possible
Authentication possible
Real-time updates via '_changes' (!)
Attachment handling
Best used: For accumulati...
Insert HTML into view from AngularJS controller
...nt, you should avoid using filters. A filter will trigger two digests each time.
– Tantelope
Aug 9 '15 at 6:00
14
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How to test if a string is basically an integer in quotes using Ruby
...eat actually .. I may have to give it a longer look when I have more spare time.
– Rado
Aug 5 '09 at 22:21
You've got ...
(Built-in) way in JavaScript to check if a string is a valid number
...t("2016-12-31") // returns 2016
parseFloat("1-1") // return 1
parseFloat("1.2.3") // returns 1.2
The problem with Number() is that it will return a number in cases where the passed value is not a number at all!
Number("") // returns 0
Number(" ") // returns 0
Number(" \u00A0 \t\n\r") // return...
How to find list of possible words from a letter matrix [Boggle Solver]
...y faster. (I checked this against John Fouhy's solution.) After setup, the time to solve is down in the noise.
grid = "fxie amlo ewbx astu".split()
nrows, ncols = len(grid), len(grid[0])
# A dictionary word that could be a solution must use only the grid's
# letters and have length >= 3. (With ...
Fastest way to list all primes below N
...
Warning: timeit results may vary due to differences in hardware or
version of Python.
Below is a script which compares a number of implementations:
ambi_sieve_plain,
rwh_primes,
rwh_primes1,
rwh_primes2,
sieveOfAtkin,
sieveOf...
How to check if a user is logged in (how to properly use user.is_authenticated)?
...ocs.djangoproject.com/en/dev/topics/auth/… and docs.djangoproject.com/en/1.2/topics/templates/#variables)
– Peter Rowell
Sep 5 '10 at 12:44
2
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how to make a whole row in a table clickable as a link?
... standards and should be lower case (I had issues with cross browser a few times with this)) and then the jQuery is $('.clickable_row tr').click(function ... But really you should be using data- to hold data, instead of href since that is the specification for custom data. data-url and jquery will a...
How to format a number as percentage in R?
...nk! I wasn't sure if it is a feature or a bug. For multiple numbers it sometimes works and sometimes doesn't. Say, scales::percent(c(-0.1,-0.1,-0.1)) produces "NaN%" "NaN%" "NaN%" but your example does work. For the reference of others, the bug isn't yet fixed as of scales_0.2.4. Also, as of today, ...