使用扩展运算符(...) 函数将Map 转为数组
const map = new Map()
.set('a', 'good')
.set('b', '1230')
.set('c', '.com');
console.log(map)
// Map(3) {"a" => "good", "b" => "1230", "c" => ".com"}
console.log([...map]);
// [["a","good"],["b","1230"],["c",".com"]]
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