javascript how to check if object which includes arrays is empty

Question

I have an object, which itself includes arrays

how to check if such object is empty or not in javascript (or in Angular.js) ?

please see the image

Answer 1

You can create a function to see if the object has any enumerable properties:

function isEmptyObject(obj) {
   if (!obj || typeof obj !== "object") {
      throw new Error("Must pass object");
   }
   return Object.keys(obj).length === 0;
}

Or, if you don't want the type checking:

function isEmptyObject(obj) {
   return Object.keys(obj).length === 0;
}