如何比较 Groovy 中的两个列表 [英] How can I compare two lists in Groovy

问题描述

如何比较两个列表中的项目并创建一个具有 Groovy 差异的新列表?

How can I compare the items in two lists and create a new list with the difference in Groovy?

推荐答案

Collections intersect 可能会帮助你解决这个问题，即使反转它有点棘手.也许是这样的:

Collections intersect might help you with that even if it is a little tricky to reverse it. Maybe something like this:

def collection1 = ["test", "a"]
def collection2 = ["test", "b"]
def commons = collection1.intersect(collection2)
def difference = collection1.plus(collection2)
difference.removeAll(commons)
assert ["a", "b"] == difference

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