Gas Optimizations

[code423n4]

Variables: No need to explicitly initialize variables with default values

If a variable is not set/initialized, it is assumed to have the default value (0 for uint, false for bool, address(0) for address…). Explicitly initializing it with its default value is an anti-pattern and wastes gas.

We can use uint number; instead of uint number = 0;

Instance Includes:

contracts/NestedRecords.sol:71:            uint256 tokenIndex = 0;

Recommendation:

I suggest removing explicit initializations for default values.

[Yashiru]

Variables: No need to explicitly initialize variables with default values (Duplicated)

Duplicated of #2 at For loop optimizaion

[JeeberC4]

Warden submitted multiple Gas Optimizations. Will not be judged.