即使对象属性显示在控制台日志中，也无法访问

console.log(obj) ;
console.log(obj.newKey1) ;

// returned in console
> Object { origKey1: "blah", origKey2: "blah blah"} [i]
    origKey1: "blah"
    origKey2: "blah blah"
    newKey1: "this info"
    newKey2: "that info"
    newKey3: " more info"
> *undefined*

console.log(json_string_object)

object = JSON.parse(json_string_object);

var jsonObj = JSON.parse(JSON.stringify(responseText))

// where responseText is a JSON String returned by the server.

console.log(jsonObj) ///Was printing the object correctly
console.log(jsonObj.Body) /// Was printing Undefined  

var jsonObj = Ext.decode(responseText)
console.log(jsonObj.Body) //Worked...

setTimeout(function() {
   var myObj = xyz; //some code for creation of complex object like above
   console.log(myObj); // this works
   console.log(myObj.propertyName); // this works too
});

const model:MyMOdelClass=JSON.parse(data);

window.addEventListener('load', function(){

    var fileInterval = setInterval(function() {
        if (typeof config.col_id_3 !== 'undefined') {

            // do your stuff here

            clearInterval(fileInterval); // clear interval
        }
    }, 100); // check every 100ms

});

 items = await Model.find()
 

 items = await Model.find().lean()
 

console.log(object)

console.log(object.key)

console.log(typeof config);

console.log(config[col_id_3]);

var object = JSON.parse(config);

console.log(object[col_id_3]);

console.log(JSON.stringify(obj, null, 2));

> {
>   "code": "foo"
> }

console.log(obj.code);

> undefined

console.log(JSON.stringify(Object.keys(obj)));

> ["_wrapped","_chain"]

var leadBean = app.data.createBean('Leads', {id: this.model.attributes.parent_id});

// This should load object with attributes 
leadBean.fetch();

// Here were my attributes filled in with proper values including name
console.log(leadBean);

// Printed "undefined"
console.log(leadBean.attributes.name);

var leadBean = app.data.createBean('Leads', {id: this.model.attributes.parent_id});

// This should load object with attributes 
leadBean.fetch({
    success: function (lead) {
        // Printed my value correctly
        console.log(lead.attributes.name);
    }
});

{
  foo: {
         bar: "Hello"
         baz: "World"
       }
}

toJSON() {
  return this.foo
}

var data = {
    key1: {
          key2: "some value"
       }
}

--mangle-props

var data = JSON.parse( content);
...
this.pageIndex = parseInt(data.index);
this.pageTotal = parseInt(data.total);
this.pageLimit = parseInt(data.limit); 

var n = JSON.parse( t);
...
this._ = parseInt(n.index), this.g = parseInt(n.total), this.D = parseInt(n.C)

formValues.myKey:               undefined
formValues.myKey with timeout:  content

console.log('formValues.myKey: ',formValues.myKey);
setTimeout( () => { 
  console.log('formValues.myKey with timeout: ', formValues.myKey);
}, 0 );

     var response = JsonConvert.DeserializeObject<StatusResult>(string Of object);
     return Json(response);

return Json(string Of object);

 const wrongPropName = "SomeProperty"; // upper case "S"
const correctPropName = "someProperty"; // lower case "s"
const object = { someProperty: "hello world!" };

console.log('Accessing "SomeProperty":', object[wrongPropName]);
console.log('Accessing "someProperty":', object[correctPropName])