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How can I convert immutable.Map to mutable.Map in Scala?
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128
The cleanest way would be to use the mutable.Map varargs factory. Unlike the ++ approach, this...
Best way to find the intersection of multiple sets?
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From Python version 2.6 on you can use multiple arguments to set.intersection(), like
u = set.intersection(s1, s2, s3)
If the sets are in a list, this translates to:
u = set.intersection(*setlist)
where *a_list is list expansion
Note that...
Script parameters in Bash
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125
The arguments that you provide to a bashscript will appear in the variables $1 and $2 and $3 wh...
How to find the key of the largest value hash?
I have the following hash {"CA"=>2, "MI"=>1, "NY"=>1}
7 Answers
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MySQL IF NOT NULL, then display 1, else display 0
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214
Instead of COALESCE(a.addressid,0) AS addressexists, use CASE:
CASE WHEN a.addressid IS NOT N...
Combining two lists and removing duplicates, without removing duplicates in original list
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172
You need to append to the first list those elements of the second list that aren't in the first ...
Returning value from called function in a shell script
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282
A Bash function can't return a string directly like you want it to. You can do three things:
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Best way of returning a random boolean value
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245
A declarative snippet using Array#sample:
random_boolean = [true, false].sample
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How can I create a Set of Sets in Python?
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121
Python's complaining because the inner set objects are mutable and thus not hashable. The solut...
Reduce, fold or scan (Left/Right)?
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372
In general, all 6 fold functions apply a binary operator to each element of a collection. The re...