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Explore the deeper capabilities of structs in Julia programming beyond their basic function as named field containers in this 10-minute conference talk from JuliaCon Global 2025. Discover how structs serve as a fundamental language for describing problems, understanding code structure, and implementing complex features that extend far beyond simple NamedTuple functionality. Learn about essential interfaces to implement for structs that enable higher-order behavior, including struct equality mechanisms and the implementation of iterable objects. Master best practices for enhanced type introspection through custom struct printing techniques. Examine the critical distinctions between mutable and immutable structs, uncovering advanced features available exclusively to mutable structs even when all fields are designated as immutable, revealing capabilities that go beyond the apparent syntax differences in field mutability.
