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When to use UICollectionView instead of UITableView?

I found that UICollectionView is like an upgraded version of UITableView introduced in iOS6, but when should I choose UICollectionView instead of UITableView ? ...
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PHP: How to remove all non printable characters in a string?

...SCII? If your Tardis just landed in 1963, and you just want the 7 bit printable ASCII chars, you can rip out everything from 0-31 and 127-255 with this: $string = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $string); It matches anything in range 0-31, 127-255 and removes it. 8 bit extended ASCI...
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How to see the values of a table variable at debug time in T-SQL?

Can we see the values (rows and cells) in a table valued variable in SQL Server Management Studio (SSMS) during debug time? If yes, how? ...
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Why is Dictionary preferred over Hashtable in C#?

In most programming languages, dictionaries are preferred over hashtables. What are the reasons behind that? 19 Answers ...
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Profiling Vim startup time

...ent directory with all required information. To get per-script information table similar to already present per-function one, use (after opening this file in vim): " Open profile.log file in vim first let timings=[] g/^SCRIPT/call add(timings, [getline('.')[len('SCRIPT '):], ...
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How do I explicitly specify a Model's table-name mapping in Rails?

I have a Model class called Countries and I want it to map to a DB table called 'cc'. 2 Answers ...
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Sort rows in data.table in decreasing order on string key `order(-x,v)` gives error on data.table 1.

Let's say I have the following data.table in R : 3 Answers 3 ...
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How to change field name in Django REST Framework

... blank=True) objects = models.GeoManager() class Meta: db_table = u'p_park' def __unicode__(self): return '%s' % self.name Here is Serializer for Park Model, ParkSerializer. This changes the name of alternate_name to location. class ParkSerializer(serializers.ModelS...
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How to check the version before installing a package using apt-get?

...-server redis-server: Installed: (none) Candidate: 2:2.8.4-2 Version table: 2:2.8.4-2 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages apt-get install -s <package-name> $ apt-get install -s redis-server NOTE: This is only a simulation! apt-g...
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Laravel Eloquent: How to get only certain columns from joined tables

I have got 2 joined tables in Eloquent namely themes and users. 15 Answers 15 ...