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Random shuffling of an array
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264
Using Collections to shuffle an array of primitive types is a bit of an overkill...
It is simpl...
What is the difference between “INNER JOIN” and “OUTER JOIN”?
...with a single column each, and data as follows:
A B
- -
1 3
2 4
3 5
4 6
Note that (1,2) are unique to A, (3,4) are common, and (5,6) are unique to B.
Inner join
An inner join using either of the equivalent queries gives the intersection of the two tables, i.e. the two rows the...
How to draw border around a UILabel?
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edited Dec 21 '19 at 10:44
Gennadiy Ryabkin
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an...
What's the cleanest way of applying map() to a dictionary in Swift?
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Swift 4+
Good news! Swift 4 includes a mapValues(_:) method which constructs a copy of a dictionary with the same keys, but different values. It also includes a filter(_:) overload which returns a Dictionary, and init(uniqueKeysWi...
Text Progress Bar in the Console [closed]
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498
Python 3
A Simple, Customizable Progress Bar
Here's an aggregate of many of the answers below ...
SSL Error When installing rubygems, Unable to pull data from 'https://rubygems.org/
...ng to do the Michael Hartl tutorial. When I attempt to install rails 3.2.14 in my gemset, I get the following issue:
24 An...
Are duplicate keys allowed in the definition of binary search trees?
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answered Nov 19 '08 at 4:08
ChrisChris
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Is there a way to keep Hudson / Jenkins configuration files in source control?
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Peter SchuetzePeter Schuetze
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Add Text on Image using PIL
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edited Jul 25 '17 at 11:54
chro
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answered May 4 '...
How to count string occurrence in string?
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1084
The g in the regular expression (short for global) says to search the whole string rather than j...