Compound data types in Rust - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a tuple with an integer and a string.

Rust

let my_tuple = ([1], "hello");

Drag options to blanks, or click blank then click option'

A42

B3.14

Ctrue

D"world"

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string instead of an integer for the first element.

The tuple should start with an integer, so 42 is correct.

2fill in blank

medium

Complete the code to access the second element of the tuple.

Rust

let second = my_tuple.[1];

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A2

B0

C1

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using index 2 or higher which is out of range for a two-element tuple.

Tuple elements are accessed by zero-based index, so the second element is at index 1.

3fill in blank

hard

Fix the error in the code to create an array of integers.

Rust

let numbers: [i32; 3] = [[1], 2, 3];

Drag options to blanks, or click blank then click option'

A"one"

B3.0

Ctrue

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string or float instead of an integer.

The array must contain integers, so 1 is the correct choice.

4fill in blank

hard

Fill both blanks to create a vector and add an element to it.

Rust

let mut v = Vec::new();
v.[1](10);
let first = v.[2](0);

Drag options to blanks, or click blank then click option'

Apush

Bget

Cpop

Dinsert

Attempts:

3 left

💡 Hint

Common Mistakes

Using pop to add elements or insert without index.

Use push to add an element and get to access an element by index.

5fill in blank

hard

Fill all three blanks to create a tuple, destructure it, and print the values.

Rust

let [1] = ("Rust", 2024);
let (language, year) = [2];
println!("{} was released in {}", [3], year);

Drag options to blanks, or click blank then click option'

Ainfo

Clanguage

Ddata

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names for the tuple and destructuring.

Printing the tuple variable instead of the destructured value.

We name the tuple info, destructure info, and print language.