How to set all values of an object to null in JavaScript?

Question

I need to set all properties of some object to null. But the object can be very big, so I can\'t just do it one by one.

How to set all properties at onc

Answer 1

let values = {
    a:1, 
    b:'', 
    c: {
        a:'', 
        s:4, 
        d: {
            q: '',
            w: 8,
            e: 9
        }
 
    }
}


values;

const completeWithNull = (current) => {
  Object.keys(current).forEach((key) => {
   		current[key] = current[key] === ''? null 
    	: typeof current[key] === 'object' ? completeWithNull(current[key])
    	: current[key]
  });
  
  return current;
};

completeWithNull(values);