Rust is a statically-typed language, which means that every variable must have a specific type. Rust's type system is designed to be safe and to prevent many common errors that occur in other languages. In this challenge, you will learn about some of the basic primitive data types in Rust, such as integers, floating-point numbers, booleans, and characters.
Understanding how to declare and use these basic data types is fundamental to writing effective Rust code. This challenge will guide you through defining variables with specific types and initializing them.
u8
and value 42
f64
and value 3.14
bool
and value false
char
and value a
(u8, f64, bool, char)
with the variables you defined.(u8)
: Represents an 8-bit
unsigned integer.(f64)
: Represents a 64-bit
floating-point number.(bool)
: Represents a boolean
value, which can be either true
or false
.(char)
: Represents a single Unicode scalar value.Here are some hints for you if you're stuck:
u8
you can use the syntax let variable_name: u8 = 10;
f64
you can use the syntax let variable_name = 3.14;
bool
you can use the syntax let variable_name = false;
char
you can use single quotes like let variable_name = 'a';
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let forty_two: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let pi: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let is_false: bool = false; // 4. Define variable of type `char` and value `a` let letter_a: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (forty_two, pi, is_false, letter_a)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c = false; // 4. Define variable of type `char` and value `a` let d = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let num: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let numm: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let boolean: bool = false; // 4. Define variable of type `char` and value `a` let character: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (num, numm, boolean, character)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a = 42u8; // 2. Define variable of type `f64` and value `3.14` let b = 3.14f64; // 3. Define variable of type `bool` and value `false` let c = false; // 4. Define variable of type `char` and value `a` let d = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let var1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let var2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let var3: bool = false; // 4. Define variable of type `char` and value `a` let var4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (var1, var2, var3, var4)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let variable: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let variable1: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let boolean_variable: bool = false; // 4. Define variable of type `char` and value `a` let character: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (variable, variable1, boolean_variable, character)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let var1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let var2:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let var3: bool = false; // 4. Define variable of type `char` and value `a` let var4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (var1, var2, var3, var4)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let var1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let var2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let var3: bool = false; // 4. Define variable of type `char` and value `a` let var4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (var1, var2, var3, var4)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let n1 : u8 = 42; // 2. Define variable of type `f64` and value `3.14` let f1 : f64 = 3.14; // 3. Define variable of type `bool` and value `false` let b1 : bool = false; // 4. Define variable of type `char` and value `a` let c1 : char = 'a'; // 5. Return a tuple with the variables in the order they were defined (n1,f1,b1,c1)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` // 2. Define variable of type `f64` and value `3.14` // 3. Define variable of type `bool` and value `false` // 4. Define variable of type `char` and value `a` // 5. Return a tuple with the variables in the order they were defined let my_u8_var : u8 = 42 ; let my_f64_var : f64 = 3.14; let my_bool_var : bool = false; let my_char_var: char = 'a'; (my_u8_var, my_f64_var, my_bool_var, my_char_var)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a,b,c,d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a,b,c,d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a:u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c:bool = false; // 4. Define variable of type `char` and value `a` let d:char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a,b,c,d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a:u8 = 42; // 2. Define variable of type `f64` and value `3.14` let pi:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let b:bool = false; // 4. Define variable of type `char` and value `a` let c:char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, pi, b, c)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let u8_type : u8 = 42; // 2. Define variable of type `f64` and value `3.14` let f64_type : f64 = 3.14; // 3. Define variable of type `bool` and value `false` let bool_type : bool = false; // 4. Define variable of type `char` and value `a` let char_type : char = 'a'; // 5. Return a tuple with the variables in the order they were defined (u8_type, f64_type, bool_type, char_type)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let u_eight_int: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let u_f_sixty_four_float: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let u_bool: bool = false; // 4. Define variable of type `char` and value `a` let variable_char: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (u_eight_int, u_f_sixty_four_float, u_bool, variable_char)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (a, b, c, d);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let var_u8: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let var_f64: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let var_bool: bool = false; // 4. Define variable of type `char` and value `a` let var_char: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (var_u8, var_f64, var_bool, var_char)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let var1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let var2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let var3: bool = false; // 4. Define variable of type `char` and value `a` let var4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return ( var1, var2, var3, var4 )}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (a, b, c, d);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let un_int: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let floating: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let george: bool = false; // 4. Define variable of type `char` and value `a` let some_char: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (un_int, floating, george, some_char);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` // 2. Define variable of type `f64` and value `3.14` // 3. Define variable of type `bool` and value `false` // 4. Define variable of type `char` and value `a` // 5. Return a tuple with the variables in the order they were defined (42_u8, 3.14_f64, false, 'a')}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let var_u8: u8 = 42; let var_f64: f64 = 3.14; let var_bool: bool = false; let var_char: char = 'a'; (var_u8, var_f64, var_bool, var_char) // 2. Define variable of type `f64` and value `3.14` // 3. Define variable of type `bool` and value `false` // 4. Define variable of type `char` and value `a` // 5. Return a tuple with the variables in the order they were defined}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let vu8: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let vf64: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let vbool: bool = false; // 4. Define variable of type `char` and value `a` let vchar: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (vu8, vf64, vbool, vchar)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a : u8 = 42; // 2. Define variable of type `f64` and value `3.14`let b : f64 = 3.14; // 3. Define variable of type `bool` and value `false`let c : bool = false; // 4. Define variable of type `char` and value `a` let d : char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (a, b, c, d);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a:u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c:bool = false; // 4. Define variable of type `char` and value `a` let d:char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a:u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c:bool = false; // 4. Define variable of type `char` and value `a` let d = 'a'; // 5. Return a tuple with the variables in the order they were defined return (a,b,c,d);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let one: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let two: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let three: bool = false; // 4. Define variable of type `char` and value `a` let four: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (one, two, three, four);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let meaning: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let pi: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let not_true: bool = false; // 4. Define variable of type `char` and value `a` let ltr: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (meaning, pi, not_true, ltr)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a,b,c,d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let ueight: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let fsixtyfour: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let bo: bool = false; // 4. Define variable of type `char` and value `a` let c: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (ueight, fsixtyfour, bo, c)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` // 2. Define variable of type `f64` and value `3.14` // 3. Define variable of type `bool` and value `false` // 4. Define variable of type `char` and value `a` // 5. Return a tuple with the variables in the order they were defined let x1: u8 = 42; let x2: f64 = 3.14; let x3: bool = false; let x4: char = 'a'; (x1, x2, x3, x4)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let one = 42u8; // 2. Define variable of type `f64` and value `3.14` let two = 3.14f64; // 3. Define variable of type `bool` and value `false` let three = false; // 4. Define variable of type `char` and value `a` let four = 'a'; // 5. Return a tuple with the variables in the order they were defined (one, two, three, four)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` const meaning_of_life: u8 = 42; // 2. Define variable of type `f64` and value `3.14` const pi: f64 = 3.14; // 3. Define variable of type `bool` and value `false` const falsey: bool = false; // 4. Define variable of type `char` and value `a` const a: char = 'a'; // 5. Return a tuple with the variables in the order they were defined let tup: (u8, f64, bool, char) = (meaning_of_life, pi, falsey, a); tup}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a,b,c,d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let num: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let float: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let boolean: bool = false; // 4. Define variable of type `char` and value `a` let character: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (num, float, boolean, character)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let x: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let pi: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let mybool: bool = false; // 4. Define variable of type `char` and value `a` let c: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (x,pi,mybool,c);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let integer_var: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let float_var: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let bool_var = false; // 4. Define variable of type `char` and value `a` let char_var = 'a'; // 5. Return a tuple with the variables in the order they were defined (integer_var, float_var, bool_var, char_var)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let u8_var: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let f64_var: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let bool_var: bool = false; // 4. Define variable of type `char` and value `a` let char_var: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (u8_var, f64_var, bool_var, char_var)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let num:u8 = 42; // 2. Define variable of type `f64` and value `3.14` let num1:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let num2:bool = false; // 4. Define variable of type `char` and value `a` let num3: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (num,num1,num2,num3)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let a: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let b: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let c: bool = false; // 4. Define variable of type `char` and value `a` let d: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (a, b, c, d);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let x: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let y:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let z:bool = false; // 4. Define variable of type `char` and value `a` let c:char = 'a'; // 5. Return a tuple with the variables in the order they were defined (x, y,z,c)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let varia: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let flotante: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let bol: bool = false; // 4. Define variable of type `char` and value `a` let caracter: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (varia, flotante, bol, caracter)}