Lazy initialization allows deferring resource initialization until needed, which can prevent slow starts and avoid unnecessary resource allocation for rarely used components.
In older versions of Rust, lazy initialization wasn't available in its standard library; third-party crates like lazy_static and once_cell provided this functionality.
With Rust 1.80, much of the lazy initialization functionality has been integrated into the standard library, allowing developers to avoid dependencies on external crates.
By utilizing lazy initialization, we can enhance application performance by ensuring that heavy resources are only loaded when truly necessary for request handling.
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