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sort and toSort in groovy

Published 5 months ago by Joe with tags groovy java sort toSorted dangerous #diffRuby
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def initial = [1,3,5,4]

// sort with closure and create a new object
def sorted = initial.toSorted{ a, b -> a <=> b}

// original collection remains as initial state
println("initial after custom toSort=$initial")

// new sorted collection is as expected

// do a naughty sort
// show that the initial has mutated
println("initial after dangerous sort=$initial")