Why does the data returned by Javascript-ajax prompt object?

Why does the prompt result after running is [Object Object],[object object] instead of specific data?
The result should be this way. [{title: ' 3333333333333 '}, {title: ' 3333333333333 '}]
And then I tried again. alert(obj.title)So hint undefined why is this?

$res=$xiao->field("title")->select();$this->ajaxReturn($res);ajax("{:U('zhuye/zhuye')}",oV1,function(str){   var obj = eval("("+str+")");   alert(obj);});

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Why does the prompt result after running is [Object Object],[object object] instead of specific data?
The result should be this way. [{title: ' 3333333333333 '}, {title: ' 3333333333333 '}]
And then I tried it again. This alert(obj.title) is the hint undefined why?

$res=$xiao->field("title")->select();$this->ajaxReturn($res);ajax("{:U('zhuye/zhuye')}",oV1,function(str){   var obj = eval("("+str+")");   alert(obj);});

Use jquery to solve your problem, read the documentation.

obj is an array of two objects, not an object

Give it a tryalert(obj[0].title); alert(obj[1].title)；

Give it a try. It's supposed to be the type of array you're talking about.

var obj = JSON.parse(str)alert(obj);

Add a return data type to it, Datatype:json.

Print it out to see ....

Should be

   alert(obj[0].title);

Your data is already an object. When you are eval or json.prase, the call is obj.tostring ();

You can see the difference between JavaScript literal objects and JSON to know what the problem is.

The return type is not in JSON format.

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