Rust TutorialLesson 19Free preview

Rust Strings

This lesson is part of Rust · All levels

Summary

This lesson peels out the text representation in Rust which is divided into string slice (&str) and heap-owned String. Rust requires all UTF-8-formatted strings to be valid to prevent international text encoding errors. The developer will learn text manipulation, connectivity, and conversion between string types.

Key points

The '&str' type is a string slice that usually refers to fixed text that is immutable
The 'String' type is allocated in heaps, can be lengthened, and is mutable if 'mut' is used.
All strings in Rust are guaranteed to be valid UTF-8 internally.
Strings can be created from the literal using the 'String::from()' or '.to_string() ' methods.

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