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Replace Fragment inside a ViewPager
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As of November 13th 2012, repacing fragments in a ViewPager seems to have become a lot easier. Google released Android 4.2 with support for nested fragments, and it's also supported in the new Android Support Library v11 so this will work all th...
Custom HTTP headers : naming conventions
...s to just name them sensibly without the "X-" prefix.
Update 2: On June 2012, the deprecation of recommendation to use the "X-" prefix has become official as RFC 6648. Below are cites of relevance:
3. Recommendations for Creators of New Parameters
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SHOULD NOT prefix their par...
Is SHA-1 secure for password storage?
...ahale.com/how-to-safely-store-a-password/
http://www.codinghorror.com/blog/2012/04/speed-hashing.html
https://security.stackexchange.com/questions/4781/do-any-security-experts-recommend-bcrypt-for-password-storage/6415#6415
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Why is there an “Authorization Code” flow in OAuth2 when “Implicit” flow works so well?
...at could leak the access token to other systems.
https://labs.hybris.com/2012/06/05/oauth2-the-implicit-flow-aka-as-the-client-side-flow
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Abusing the algebra of algebraic data types - why does this work?
... languages with ACP. Last April I presented a research paper at Scala Days 2012, available at http://code.google.com/p/subscript/
At the conference I demonstrated a debugger running a parallel recursive specification of a bag:
Bag = A; (Bag&a)
where A and a stand for input and output actions;...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
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On my 2012 MacBook Air (Intel Core i5-3427U, 2x 1.8 GHz, 2.8 GHz Turbo), SHA-1 is slightly faster than MD5 (using OpenSSL in 64-bit mode):
$ openssl speed md5 sha1
OpenSSL 0.9.8r 8 Feb 2011
The 'numbers' are in 1000s of bytes per ...
Can someone explain __all__ in Python?
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I'm not sure that if tk were released today (or in 2012, even), the recommended practice would be to use from tk import *. I think the practice is accepted due to inertia, not intentional design.
– chepner
Nov 6 '19 at 15:36
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Update relationships when saving changes of EF4 POCO objects
...lease take a look and see if it can help http://refactorthis.wordpress.com/2012/12/11/introducing-graphdiff-for-entity-framework-code-first-allowing-automated-updates-of-a-graph-of-detached-entities/
You can go straight to the code here https://github.com/refactorthis/GraphDiff
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What's the fastest way to merge/join data.frames in R?
...eVersion("sqldf")
# [1] ‘0.4.6.4’
R.version.string
# R version 2.15.1 (2012-06-22)
Please note that I don't know plyr well so please do check with Hadley before relying on the plyr timings here. Also note that the data.table do include the time to convert to data.table and set the key, for far...
Should CSS always preceed Javascript?
...of worldwide desktop browser users using this version or greater as of Jan 2012)
Chrome 1 (WebKit 525) (100%)
IE 8 (75%)
Firefox 3.5 (96%)
Safari 4 (99%)
Opera 11.60 (85%)
In total, roughly 85% of desktop browsers in use today support speculative loading. Putting scripts before CSS will have a ...