Javascript更新对象属性值

Question

我正在尝试更新对象属性:

   data : [
     {"id":1,"rp":"2426","cr":"11-11"},
     {"id":1,"rp":"1119","cr":"19-21"},
     {"id":1,"rp":"3453","cr":"23-81"}
    ]

新对象将更新如下。

NewData: [
 {"id":1,"rp":"2426","cr":"11/11"},
 {"id":1,"rp":"1119","cr":"19/21"},
 {"id":1,"rp":"3453","cr":"23/81"}
]

我希望为所有值更新对象 cr 属性，例如使用 javascript.replace() 方法，我会做 replace("-","/")。

Answer 1

这只是 Array#map 和 String#replace 的简单用法:

ES2018

const data = [{"id":1,"rp":"2426","cr":"11-11"},{"id":1,"rp":"1119","cr":"19-21"},{"id":1,"rp":"3453","cr":"23-81"}]

const r = data.map(({ cr, ...rest }) => ({ cr: cr.replace('-', '/'), ...rest }));

console.log(r);