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Vyper’s immutable variables let you store constants on‑chain without the cost of regular storage reads. This blog explains how they work, shows a concrete example, compares gas usage, and discusses when immutables are the right choice.
Solidity 0.8.4+ custom errors replace string revert messages with typed errors, reducing gas costs and contract size. This article explains syntax, a worked example, gas comparisons, version limits, and common pitfalls.
Learn how Solidity’s custom error feature replaces costly revert strings, lowers bytecode size, and keeps error information readable for off‑chain tooling. A worked example and trade‑offs are included.
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