javascript - How to parse this json data

Question

Why when I use ajax data.SERVERPARTObject it displays undefined

Answer 1

It is possible that the data format returned by the background is string type data, not a js object. Use JSON.parse to convert it into an object.

Answer 2

data.SERVERPARTObject[0] try

Answer 3

You can print the type of data first

console.log(typeof data);

If it is a string, then JSON.parse(data);

Answer 4

Did you miss a sentence in the ajax you wrote? dataType: 'json'，跟上面的JSON.parse(data)One meaning