Summary

The updateCharacteristics function in the RamNFT contract uses a redundant struct assignment which increases gas costs. Optimizing this function can save gas and improve efficiency.

Vulnerability Details

The current implementation of the updateCharacteristics function creates a new instance of the CharacteristicsOfRam struct and reassigns it to the mapping. This redundancy can be optimized to save gas.

Impact

Directly modifying the struct properties reduces gas costs by eliminating the need to create a new struct instance.

Tools Used

Manual code review.

Recommendations

Update the updateCharacteristics function to directly modify the struct's properties without creating a new instance.