Rust empty vector

Create empty vector in rust

///Creates and returns empty vector
vec![]

///Creates and returns vector of length 'l' with default value 'v'
vec![v; l] /// vec![0; 3] returns [0,0,0]

///Creates and returns vector of length 'l' with default value 'v' of datatype 'T'
vec![vT; l]; /// vec![3u8; 2] returns [3, 3] 

///Creates empty vector with specific type 'T' and capacity 'c'
Vec::<T>::with_capacity(c)

Source: doc.rust-lang.org

Rust empty vector

let mut vec = Vec::new();

Source: doc.rust-lang.org

Get length of vector rust

let a = vec![1, 2, 3];
assert_eq!(a.len(), 3);

Source: doc.rust-lang.org

Similar codes

0 vote303 views1 answer
Rust Pause execution for several seconds
Rust
0 vote358 views1 answer
New rust project with cargo
Rust
0 vote343 views1 answer
Rust multiplication table for a number
Rust
0 vote321 views1 answer
Rust named tuple
Rust
0 vote361 views1 answer
Create file rust
Rust
0 vote342 views1 answer
Split a line on whitespace
Rust
0 vote329 views1 answer
Rustlang how to compile
Rust
3 votes459 views1 answer
How to concatenate two &str in rust
Rust
0 vote327 views1 answer
Split text on several separators
Rust
2 votes384 views2 answers
Get length of vector rust
Rust