<ul data-eligibleForWebStory="false"><li>StaticString is immutable throughout an application's lifetime, contrasting with String's dynamic nature.</li><li>StaticString avoids dynamic memory allocation, supports limited encodings, and offers minimal API.</li><li>It's best for performance critical tasks like C interoperability, logging, and immutability enforcement.</li><li>It ensures efficiency with zero runtime cost for debuggers, avoids heap allocations, and aids optimization.</li></ul>

Swift Performance Deep‑Dive: Mastering StaticString for Leaner, Faster Code

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