Question

我有这个数组[“ 12345678”，“ 87654321”] 而且我想将每个索引注入itemId类别的对象中，并再次遍历该对象，将第二个索引放入另一个itemId类别。

var myArray = ["12345678", "87654321", "12345678"]
var idArray =[]
   var arrayLength = myArray.length;
    for (var i =0; i < arrayLength; i++) {
        let idElement = myArray[i]
        idArray.push(idElement);
        console.log(idElement);

   let multipleitems = {
        Request: {
            Details: {
                id: idArray,
                amount: 1
            },
        }
    };

给我这个输出

Request: {Details: {Id: ["12345678", "12345678", "12345678" ], amount: 1}}

是否可以根据myArray中有多少索引来遍历“细节很多次”以获得该输出

{"Request":{"Details":[{"Id":"12345678","amount":1},{"itemId":"87654321","amount":1},{"Id":"12345678","amount":1}]}}

Answer 1

这是非常基本的array map()操作。您每次迭代都会返回一个新对象，而map（）本身会返回一个新数组

var myArray = ["12345678", "87654321", "12345678"];

let multipleitems = {
  Request: {
    Details: myArray.map(id => ({id, amount:1}) )
  }
};

console.log(multipleitems)

有没有一种方法可以基于数组的长度迭代对象？

1 个答案: