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Removing projects in Sublime Text 2 and 3
...feature there are a couple of manual ways you can remove projects.
Option 1: The quick way (Clear All):
If you're just looking for the fastest way to clean up your list this option is for you.
Please be aware that this will clear out all projects in the recent list. This includes ones you have n...
What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
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163
The Gemfile is where you specify which gems you want to use, and lets you specify which versio...
LISTAGG in Oracle to return distinct values
...
19c and later:
select listagg(distinct the_column, ',') within group (order by the_column)
from the_table
18c and earlier:
select listagg(the_column, ',') within group (order by the_column)
from (
select distinct the_c...
Aggregate / summarize multiple variables per group (e.g. sum, mean)
...he reshape2 package for this task:
require(reshape2)
df_melt <- melt(df1, id = c("date", "year", "month"))
dcast(df_melt, year + month ~ variable, sum)
# year month x1 x2
1 2000 1 -80.83405 -224.9540159
2 2000 2 -223.76331 -288.2418017
3 2000 3 -188.83930 -481....
String formatting in Python 3
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174
Here are the docs about the "new" format syntax. An example would be:
"({:d} goals, ${:d})".f...
How do I use Nant/Ant naming patterns?
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241
The rules are:
a single star (*) matches zero or more characters within a path name
a double s...
Appending an element to the end of a list in Scala
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List(1,2,3) :+ 4
Results in List[Int] = List(1, 2, 3, 4)
Note that this operation has a complexity of O(n). If you need this operation frequently, or for long lists, consider using another data type (e.g. a ListBuffer).
...
What is sys.maxint in Python 3?
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180
The sys.maxint constant was removed, since there is no longer a limit
to the value of int...
Scala: what is the best way to append an element to an Array?
...repend it:
0 +: array :+ 4
should produce:
res3: Array[Int] = Array(0, 1, 2, 3, 4)
It's the same as with any other implementation of Seq.
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