如何给json添加一个键值对

Question

`｛
age：23，name：“你”
｝` 在已有的json里，加一对？
有哪些方法？

Answer 1

> var str = '{"age":23,"name":"你"}'> var object = JSON.parse(str)> object.newKey = 'newvalue''newvalue'> object{ age: 23, name: '你', newKey: 'newvalue' }> JSON.stringify(object)'{"age":23,"name":"你","newKey":"newvalue"}'