如何遍历数组和对属性进行字符串化

Question

我试图积累一个数组的属性，并将其保存为一个字符串写回到数组中，以便稍后使用JSON.parse进行解析。

在初始数据集中， items属性是一个数组。

我想重组数据，使项目是对象的字符串。

给出类似的东西：

[{
   {
     "n":"1",
     "items": [0: "{"id":"id1","desc":"description1"}",
               1: "{"id":"id2","desc":"description2"}"
               2: "{"id":"id3","desc":"description3"}"]
   },
   {
     "n":"2",
     "items": [0: "{"id":"id4","desc":"description4"}",
               1: "{"id":"id5","desc":"description5"}"
               2: "{"id":"id6","desc":"description6"}"]
   }
}]

转换成：

[{
   {
     "n":"1",
     "items": "[{"id":"id1","desc":"description1"}","{"id":"id2","desc":"description2"}","{"id":"id3","desc":"description3"}]"
   },
   {
     "n":"2",
     "items": "[{"id":"id4","desc":"description4"}","{"id":"id5","desc":"description5"}", "{"id":"id6","desc":"description6"}]"
   }
}]

Answer 1

我必须清理您的数据，因此我假设我在下面设置的数据结构就是您的实际意思。

 const data = [ { "n":"1", "items": [ {"id":"id1","desc":"description1"}, {"id":"id2","desc":"description2"}, {"id":"id3","desc":"description3"} ] }, { "n":"2", "items": [ {"id":"id4","desc":"description4"}, {"id":"id5","desc":"description5"}, {"id":"id6","desc":"description6"} ] } ]; const newData = data.map(val => { return Object.assign({}, val, { items: JSON.stringify(val.items) }); }); console.log(newData); 

Answer 2

  arr.map(({ items, ...rest }) => ({ items: JSON.stringify(items), ...rest }));