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How do I parse JSON with Objective-C?
...f the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for example:
NSData *returnedData = ...JSON data, probably from a web r...
How to pass a class type as a function parameter
...class of the instances of returningClass
handler(returningClass())
}
Now there's the problem of constructing an instance of T to pass to handler: if you try and run the code right now the compiler will complain that T is not constructible with (). And rightfully so: T has to be explicitly cons...
What's the difference between UTF-8 and UTF-8 without BOM?
...hould not rely on this, as show by the example above
Encodings should be known, not divined.
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
...
I've been using Solr successfully for almost 2 years now, and have never used Sphinx, so I'm obviously biased.
However, I'll try to keep it objective by quoting the docs or other people. I'll also take patches to my answer :-)
Similarities:
Both Solr and Sphinx satisfy all ...
How to inspect FormData?
...
Updated Method:
As of March 2016, recent versions of Chrome and Firefox now support using FormData.entries() to inspect FormData. Source.
// Create a test FormData object
var formData = new FormData();
formData.append('key1', 'value1');
formData.append('key2', 'value2');
// Display the key/valu...
Difference between static STATIC_URL and STATIC_ROOT on Django
...es for deployment.
Example: STATIC_ROOT="/var/www/example.com/static/"
now the command ./manage.py collectstatic will copy all the static files(ie in static folder in your apps, static files in all paths) to the directory /var/www/example.com/static/. now you only need to serve this directory on...
Android ViewPager with bottom dots
...upvoted before I ask the question, because it already helped me a lot, but now I wish I can apvote +2 or +100 :) because adding the onPageChangeListener worked perfectly for me! And just to make it clear for anyone that may use this, you need to do your updates on the onPageSelected callback only, a...
Unable to simultaneously satisfy constraints, will attempt to recover by breaking constraint
...o do this:
DEBUG VIEW HIERARCHY (Do not recommend this way)
Since you know where to find unexpected constraints (PBOUserWorkDayHeaderView) there is a way to do this fairly well. Lets find UIView and NSLayoutConstraint in red rectangles. Since we know their id in memory it is quite easy.
Stop a...
How to modify a pull request on GitHub to change target branch to merge into?
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You can now:
https://github.com/blog/2224-change-the-base-branch-of-a-pull-request
"You can now change the base branch of an open pull request. After you’ve created a pull request, you can modify the base branch so that the change...
ORA-00979 not a group by expression
...ow as result with the first column 0 to fulfill the GROUP BY but there are now two values of bar to chose from. Which result would you expect - A or B? Or should the database return more than one row, violating the contract of GROUP BY?
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