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moklett/doublesplat.rb

Last active October 4, 2017 16:18
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Ruby Double Splat is a bit like Javascript Spread
Raw
doublesplat.rb
a = { a: "a" }
b = { b: "b" }
{ **a, **b }
#=> {:a=>"a", :b=>"b"}
{ z: "z", **a, **b }
#=> {:z=>"z", :a=>"a", :b=>"b"}
{ a: "AAA", **a, **b }
#=> {:a=>"a", :b=>"b"}
{ **a, **b, a: "AAA" }
#=> {:a=>"AAA", :b=>"b"}
# Compare to how I may have done merges before...
merged1 = a.merge(b)
merged2 = { **a, **b }
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