rust iterate over vector
To iterate over the elements of a vector in Rust, you can use a for loop. Here’s an example:
The
for loop is a convenient way to iterate over the elements of a vector. It allows you to write a loop that will execute a block of code for each element in the vector.for variable in iterable {
code to execute
}
In the case of a vector, the iterable is the vector itself, and variable is a variable that will be assigned to each element of the vector in turn.
rust iterate over vector
Here’s an example of a for loop that iterates over a vector of integers:
fn main() {
let numbers = vec![1, 2, 3, 4, 5];
for number in numbers {
println!("{}", number);
}
}
This will print the numbers 1 through 5 on separate lines.
You can also use the iter() method on a vector to get an iterator over its elements, and then call next() on the iterator to retrieve the elements one by one. Here’s an example:
fn main() {
let numbers = vec![1, 2, 3, 4, 5];
let mut iterator = numbers.iter();
while let Some(number) = iterator.next() {
println!("{}", number);
}
}