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How can I get the intersection, union, and subset of arrays in Ruby?
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Utilizing the fact that you can do set operations on arrays by doing &(intersection), -(difference), and |(union).
Obviously I didn't implement the MultiSet to spec, but this should get you started:
class MultiSet
attr_accessor :set
def initialize(set)
@set = set
end
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Why are there two build.gradle files in an Android Studio project?
...which defines:
repositories and
dependencies
Gradle Plugin version
By default, the project-level Gradle file uses buildscript to define the Gradle repositories and dependencies. This allows different projects to use different Gradle versions. Supported repositories include JCenter, Maven Cen...
Postgresql query between date ranges
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You can avoid date calculations in your application by using interval. e.g.: WHERE login_date >= '2014-02-01' AND login_date < '2014-02-01'::date + INTERVAL '1 month' This still uses indexes while simplifying your code.
– baswell
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What is the function of the push / pop instructions used on registers in x86 assembly?
...tion in x86, which does two things internally.
Decrement the ESP register by the size of pushed value.
Store the pushed value at current address of ESP register.
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Should Github be used as a CDN for javascript libraries? [closed]
...aScript files that aren't served with the correct content-type are blocked by default. You can see that in action on the BlockUI demo page, for example:
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How do I unset an element in an array in javascript?
... Do NOT use eval. Deleting a key/index of an object/array can be achieved by much simpler methods not using eval.
– Dinei
Sep 3 '15 at 14:40
4
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How to declare a friend assembly?
...68b56649932dadd8cf5be52eb1dce"+
"ad5cedbf")]
The public key is retrieved by running
sn -Tp path\to\test\assembly.dll
Alternatively, get it from the .snk file:
sn -p MyStrongnameKey.snk public.pk
sn -tp public.pk
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How can you escape the @ character in javadoc?
... It works better than the literal expression when not followed by a space (when writting annotation for example)
– Bludwarf
May 25 '16 at 14:56
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Haskell error parse error on input `='
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@Beat GHCi tries to evaluate expressions by default, not parse statements, whereas the file format is the opposite. That's why, to make statements (ie: set variables, define functions, etc) you have to declare that you're doing using let. Think of GHCi as one big le...
How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
...t atomic operation in multithreaded process, so if i value will be changed by other thread between pushes of it's value to stack on thread executing the loop, then that condition can be false.
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