developer-roadmap/src/data/roadmaps/rust/content/101-language-basics/103-data-structures/106-vector.md

Vector

A Vector in Rust, often referred to as Vec, is a growable, or dynamically-sized, array-like data structure that can store homogeneous types. It stores elements of the same type in a contiguous block of memory, with the count of elements and capacity managed automatically by Rust. Unlike arrays, vectors do not need to have a predetermined size at compile time and their size can be increased or decreased at runtime. The Vec<T> holds its data on the heap. It maintains a pointer to the data, a length, and a capacity. The length is the number of elements currently stored in the vector, while the capacity is the total allocation in the memory. The key methods for a Vec<T> include push(), pop(), and len(), among others.

Learn more from the following links:

• Storing Lists of Values with Vectors