Glossary coding Term Page

Lifetime

A label that describes how reference scopes relate to each other

lifetime #rust#borrowing#memory

Korean version

Aliases

lifetime parameter

Prerequisites

Reference Borrowing

Related Concepts

Reference Borrowing Slice Trait impl Block

Core Idea

A lifetime does not extend how long data stays alive. It is a named label that explains how references relate to each other so the compiler can verify safety.

Why It Matters Here

Mathbong uses lifetimes when explaining returned references, struct fields that borrow data, and trait-heavy signatures. They are the key concept behind Rust's ability to express complex borrowing relationships without losing safety.

Posts Mentioning This Concept

[Rust Series Part 14] Lifetime Fundamentals Layer lifetime annotations on top of borrowing rules to read and design safe reference scopes.[Rust Series 1] Why Study Rust Now? Explain why Rust matters through ownership, borrowing, and type safety, and map out the learning roadmap.[Rust Series 6] Getting Comfortable with References and Borrowing Understand how immutable and mutable references differ and build instincts for what you can borrow at once.