Strings practice problems in Rust

Difficulty:

Category & tags Filters active

Category:

Tag:

Showing 27 of 27

Title	Difficulty	Category
ASCII search without lowercase copies	Easy	Primitives
Borrow it or own it: your first lifetime decision	Easy	Primitives
Build a CSV record with one output buffer	Easy	Primitives
Build a report with a reusable string buffer	Medium	End-to-End
Build FizzBuzz strings with an if expression	Easy	Primitives
collect and the turbofish: three targets, one source	Medium	Primitives
Cow: borrow until you have to own	Medium	Primitives
Cow in API design: impl Into<Cow<str>>	Hard	Framework
flat_map: expand a range spec like "1-3,7,10-12"	Medium	End-to-End
Giving ownership back	Medium	Primitives
Group anagrams with a map	Medium	Primitives
iter, iter_mut, into_iter: all three, one Vec	Easy	Primitives
Joining owned strings	Easy	Primitives
Move or borrow: the two ways to pass a value	Easy	Primitives
Move semantics: the relay	Easy	Primitives
`?` on Option, and bridging to Result	Medium	Primitives
peekable and next_if: write a tokeniser	Hard	End-to-End
Shadowing: rebinding is not mutation	Easy	Primitives
Slices are borrows	Easy	Primitives
Split a message at its first blank line	Easy	Primitives
String vs &str, part 2: functions that take and return text	Medium	Primitives
`&str` not `&String`, `&[T]` not `&Vec<T>`: deref coercion and ptr_arg	Easy	Primitives
The three rules of ownership	Easy	Primitives
Two inputs, one output lifetime	Medium	Primitives
Use lifetime elision for borrowed string results	Easy	Primitives
UTF-8 strings: bytes, scalar values and slicing	Hard	Primitives
Zero-copy parsing: borrow, don't allocate	Medium	Primitives