Question

我试图在变量上使用Destructing。使用MDN中的示例：

 var people = [
     {
         name: 'Mike Smith',
         family: {
             mother: 'Jane Smith',
             father: 'Harry Smith',
             sister: 'Samantha Smith'
        },
        age: 35
     },
     {
        name: 'Tom Jones',
        family: {
            mother: 'Norah Jones',
            father: 'Richard Jones',
            brother: 'Howard Jones'
     },
       age: 25
    }
];

for (var {name: n, family: {father: f}} of people) {
  console.log('Name: ' + n + ', Father: ' + f);
  //Put results into a variable here
}

// "Name: Mike Smith, Father: Harry Smith"
// "Name: Tom Jones, Father: Richard Jones"

以上将在循环中分割出2行。我想要的是将for-in循环产生的信息放回到一个新变量中，以便我可以将它从服务器（使用Express.js）发送到客户端。

Answer 1

您可以尝试以下操作：

\rowcolors

此时，您现在可以使用此结果数组执行任何操作。

Answer 2

如果我正确理解你的问题，你只需将它推入一个数组（或其他）：

var people = [
     {
         name: 'Mike Smith',
         family: {
             mother: 'Jane Smith',
             father: 'Harry Smith',
             sister: 'Samantha Smith'
        },
        age: 35
     },
     {
        name: 'Tom Jones',
        family: {
            mother: 'Norah Jones',
            father: 'Richard Jones',
            brother: 'Howard Jones'
     },
       age: 25
    }
];

var results = []

for (var {name: name, family: {father: father}} of people) {
  results.push({ name, father })
}

console.log(JSON.stringify(results));
// => [{"name":"Mike Smith","father":"Harry Smith"},{"name":"Tom Jones","father":"Richard Jones"}]

https://jsfiddle.net/bcLour92/1/

Javascript - 将Destructed项目放入一个新变量中

2 个答案: