//字符串第一类 const people = [ {name:Henry,age:20}, {name:Bucky,age:25}, {name:Emily,age:30}, ]; // 市场需求,取第二个age // es5 var age = people[0].age; console.log(age)//20 // es6重构 const [age] = people; /** * 即使第二层重构的是字符串,因此会回到第二条的这三条统计数据 */ console.log(age)//{ name: Henry, age: 20 } /** * 假如想拿第二条统计数据的age值就得再重构一场 */ const [{age}] = people; console.log(age)//20
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