Javascript readonly nested array to writable

ReadonlytoWritable.md

In case you ever need an readonly nested array to be writable again. It also checks if the object is configurable, TypeError: can't redefine non-configurable property. If it is not configurable there is no other way than to find another solution, such as recreating {...item}

Object.keys(new MyClass()).forEach(field => {
        if(Object.hasOwn(item, field)){
        // Check if the property is configurable
          const descriptor = Object.getOwnPropertyDescriptor(item, field);
          if (descriptor && !descriptor.configurable) {
              // Make the property configurable
              Object.defineProperty(item, field, { writable: true });
        }
      });