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When learning Go, developers often notice something unusual: variables don’t need explicit initialization. Unlike many languages that leave uninitialized variables as null or require explicit defaults, Go automatically assigns meaningful defaults. This concept is called zero-value initialization, and while it may seem small, it has a big impact on code simplicity, safety, and performance.

Apr 3, 2025 - 18:59

When learning Go, developers often notice something unusual: variables don’t need explicit initialization. Unlike many languages that leave uninitialized variables as null or require explicit defaults, Go automatically assigns meaningful defaults. This concept is called zero-value initialization, and while it may seem small, it has a big impact on code simplicity, safety, and performance.