Index.js:46 未捕获的类型错误：无法读取未定义的属性“生活方式”

Question

I am new to jquery, I am writing an ajax call to retrieve data from an API,

the function is been used on both live and local,

On my local the response comes as

var response = res;

var test = response.hearts.assessments.lifestyle            

on my live, the response comes as

var response = res;

var test = response.assessments.lifestyle 

it comes without [heart]

I need to implement a condition to work with both condition

currently, I have used an if-else condition but it gives an error of undefined lifestyle on my local.

this is my code

var response = res;
            if(typeof(response.assessments.lifestyle) != "undefined" || response.assessments.lifestyle !== null) {
                var lifestyle = response.assessments.lifestyle;               
            }
            else{
                var lifestyle = response.hearts.assessments.lifestyle;
            }
            

But this code won't work, can someone please help Thank you..

Answer 1

Try as given

let response  =  response.assessments || response.hearts.assessments || [];
response = response.lifestyle ||"";

if "response.assessments" comes undefined it will check "response.hearts.assessments", If both comes undefined or empty or undefined it will return empty array second line to check lifestyle property, If it is undefined than blank string

Answer 2

You should check that the key "hearts" exists in response.assessments with this method

   var response = res;
   if("hearts" in response) {
     var lifestyle = response.hearts.assessments.lifestyle;               
   } else {
     var lifestyle = response.assessments.lifestyle;
   }