I have and object I would to extract "error" form.
[{"name":"Whats up","error":"Your name required!"}]
The inspector renders object format
[Object]
0: Object
error: "Your name required!"
name: "Whats up"
How do I extract the error only if I do not know object names. I tried Object.Object[0].error
Your object is in a list - hence the square brackets. So, take the first element of the list, and then access its property:
var yourObject = [{"name":"Whats up","error":"Your name required!"}];
var firstElement = yourObject[0]; // firstElement is now = {"name":"Whats up","error":"Your name required!"}
console.log(firstElement.error);
// or immediately:
console.log(yourObject[0].error);
Example in JSFiddle: https://jsfiddle.net/hsg7qe87/
This is how you'd access parts of a JSON object.
var obj = [{"name":"Whats up","error":"Your name required!"}];
console.log(obj[0]);
> {"name":"Whats up","error":"Your name required!"}
console.log(obj[0].name);
> "Whats up"
So you'd just use:
obj[0].error;
