对象数组里的元素组成二位数组

Question

后端返回的数据为String类型areaList=" [{'county'='Asia', 'city'='Beijing,Hanzhou'},{'county'='Europe', 'city'='London,Paris,Marseille,Lyo'}]"

想将此字符串类型转变为二位数组
[['Asia','Beijing'],['Asia','Hanzhou'], ['Europe', 'London'],['Europe', 'Paris' ],['Europe', 'Marseille'],
['Europe', 'Lyon']]

Answer 1

[...areaList.matchAll(/'county'='(.+?)',\s*'city'='(.+?)'/g)].flatMap(
    ([, county, city]) => city.split(",").map(city => [county, city]),
);