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` // 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 forty_two = 42_u8; let pi = 3.14_f64; let a = 'a'; let b = false; (forty_two, pi, b, a)}
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 is_bool : 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,y,is_bool,c); }
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 floatInt:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let isActive:bool = false; // 4. Define variable of type `char` and value `a` let string:char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (num, floatInt, isActive, string); }
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, 3.14, false, '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: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 u:u8 = 42; let f:f64 = 3.14; let b:bool = false; let c:char = 'a'; return (u,f,b,c) // 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 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) { let val1: u8 = 42; let val2: f64 = 3.14; let val3: bool = false; let val4: char = 'a'; return (val1,val2,val3,val4)}
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 return (u8_var, f64_var, bool_var, char_var)}
pub fn data_types() -> (u8, f64, bool, char) { let a: u8 = 42; let b: f64 = 3.14; let c: bool = false; let d: char = 'a'; (a, b, c, d) // 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 a = 42; // 2. Define variable of type `f64` and value `3.14` let b = 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` // 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 a: u8 = 42; let b: f64 = 3.14; let c: bool = false; let d: char = 'a'; (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let varu8 = 42u8; // 2. Define variable of type `f64` and value `3.14` let varf64: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let varbool = false; // 4. Define variable of type `char` and value `a` let varchar = 'a'; // 5. Return a tuple with the variables in the order they were defined (varu8, varf64, varbool, varchar)}
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 first: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let second: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let third: bool = false; // 4. Define variable of type `char` and value `a` let fourth: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (first, second, third, fourth)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let small_var: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let floaty: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let booly: bool = false; // 4. Define variable of type `char` and value `a` let charry :char = 'a'; // 5. Return a tuple with the variables in the order they were defined (small_var, floaty, booly, charry)}
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: 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` // 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 whole_number: u8 = 42; let floating_number: f64 = 3.14; let is_bool: bool = false; let letter: char = 'a'; (whole_number, floating_number, is_bool, letter)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let first: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let second: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let third: bool = false; // 4. Define variable of type `char` and value `a` let fourth: char = 'a'; // 5. Return a tuple with the variables in the order they were defined let tup = (first, second, third, fourth); tup}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let val1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let val2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let val3: bool = false; // 4. Define variable of type `char` and value `a` let val4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (val1, val2, val3, val4)}
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 b : bool = false ; // 4. Define variable of type `char` and value `a` let letter :char = 'a'; // 5. Return a tuple with the variables in the order they were defined (x,y,b,letter)}
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 return (a, b, c, d);}
pub fn data_types() -> (u8, f64, bool, char) { let a : u8 = 42; let b : f64 = 3.14; let c : bool = false; let d : char = 'a'; (a, b, c, d) // 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}
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 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) { let a: u8 = 42; let b: f64 = 3.14; let c: bool = false; let d: char = 'a'; (a, b, c, d)}
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 x:u8 = 42; let y:f64 = 3.14; let z:bool = false; let w:char = 'a'; (x,y,z,w)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let first_var:u8 = 42; // 2. Define variable of type `f64` and value `3.14` let second_var:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let third_var:bool = false; // 4. Define variable of type `char` and value `a` let fourth_var:char = 'a'; // 5. Return a tuple with the variables in the order they were defined (first_var,second_var,third_var,fourth_var)}
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 integer: u8 = 42; let float_point = 3.14; let boolean = false; let character = 'a'; (integer, float_point, boolean, character)}
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 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 (one, two, three, four)}
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 unsigne_int : u8 = 42; let float_var : f64 = 3.14; let bool_var : bool= false; let char_var : char = 'a'; return (unsigne_int, float_var, bool_var, char_var);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let first: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let second: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let third: bool = false; // 4. Define variable of type `char` and value `a` let fourth: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (first, second, third, fourth)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let u: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let v: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let w: bool = false; // 4. Define variable of type `char` and value `a` let x: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (u,v,w,x)}
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 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: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 return (a, b, c, d);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let byte: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let deci: 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 (byte, deci, b, c)}
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 la_u8:u8 = 42; // 2. Define variable of type `f64` and value `3.14` let la_f64:f64 = 3.14; // 3. Define variable of type `bool` and value `false` let la_bool:bool = false; // 4. Define variable of type `char` and value `a` let la_char: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (la_u8, la_f64, la_bool, la_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 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 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 (one, two, three, four)}
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` // 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 u: u8 = 42; let f: f64 = 3.14; let b: bool = false; let c: char = 'a'; (u, f, b, c)}