九.对象解构

const name = Tom.name
const age = Tom.age
const .....

console.log(name,age);    // Tom Jones     25

const { name, age} = Tom;

console.log( name );    // Tom Jones
console.log( age );       // 25

let name ;
({ name, age } = Tom);

console.log(name);
console.log(age);

const { father, mother, brother } = Tom.family;

console.log( father );
console.log( mother );
console.log( brother );


// 假设 father这个变量已经被使用过了，那我们需要赋值一个新变量
const father = ‘Dad‘;
const { father: f, mother, brother } = Tom.family;

console.log(father);　　//father is not defined
console.log(f);　　　　 // Richard Jones
console.log(mother);　　// Norah Jones
console.log(brother);　　//Howard Jones