Why when I use ajax data.SERVERPARTObject it displays undefined
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.
data.SERVERPARTObject[0] try
You can print the type of data first
console.log(typeof data);
If it is a string, then JSON.parse(data);
JSON.parse(data);
Did you miss a sentence in the ajax you wrote? dataType: 'json'，跟上面的JSON.parse(data)One meaning
dataType: 'json'
JSON.parse(data)
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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.
data.SERVERPARTObject[0] try
You can print the type of data first
If it is a string, then
JSON.parse(data);Did you miss a sentence in the ajax you wrote?
dataType: 'json'，跟上面的JSON.parse(data)One meaning