ProgramGuruTo check if a vector contains all the items of another vector in Rust, you can use the iter method combined with the all method.
In this example,
vec1 with a set of numerical values.vec2 with a different set of numerical values.iter method on vec2 to get an iterator over the elements of vec2.all method on the iterator to check if all elements of vec2 are present in vec1. The all method takes a closure that checks if each element of vec2 is contained in vec1 using the contains method.all method returns true if all elements of vec2 are in vec1; otherwise, it returns false.println! macro.fn main() {
let vec1 = vec![1, 2, 3, 4, 5];
let vec2 = vec![2, 3, 4];
let result = vec2.iter().all(|&item| vec1.contains(&item));
println!("{}", result);
}true
In this example,
main_vec with a series of character strings.sub_vec with a subset of character strings.iter method on sub_vec to get an iterator over the elements of sub_vec.all method on the iterator to check if all elements of sub_vec are present in main_vec. The all method takes a closure that checks if each element of sub_vec is contained in main_vec using the contains method.all method returns true if all elements of sub_vec are in main_vec; otherwise, it returns false.println! macro.fn main() {
let main_vec = vec!["apple", "banana", "cherry", "date", "fig"];
let sub_vec = vec!["banana", "cherry", "date"];
let result = sub_vec.iter().all(|&item| main_vec.contains(&item));
println!("{}", result);
}true
In this example,
primary_vec with a list of mixed data types including numbers and strings.secondary_vec with some elements that are not present in primary_vec.iter method on secondary_vec to get an iterator over the elements of secondary_vec.all method on the iterator to check if all elements of secondary_vec are present in primary_vec. The all method takes a closure that checks if each element of secondary_vec is contained in primary_vec using the contains method.secondary_vec are in primary_vec, the all method returns false.println! macro.fn main() {
let primary_vec = vec![10, 20, 30, "apple", "banana"];
let secondary_vec = vec![20, "banana", "cherry"];
let result = secondary_vec.iter().all(|&item| primary_vec.contains(&item));
println!("{}", result);
}false
In this tutorial, we learned How to check if a Vector contains all the items of Another Vector in Rust language with well detailed examples.