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bt3gl 2022-09-29 04:40:22 -07:00 • committed by GitHub
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solidity/saving_gas.md
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@ -115,6 +115,18 @@ uint256 world; //good, cheap
<br>
---
<br>
## negative gas costs
- Deleting a contract (SELFDESTRUCT) is worth a refund of 24,000 gas.
- Changing a storage address from a nonzero value to zero (SSTORE[x] = 0) is worth a refund of 15,000 gas.
<br>
---
## resources and tools