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 v1:u8 = 42; let v2:f64 = 3.14; let v3:bool = false; let v4:char = 'a'; // 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 (v1,v2,v3,v4)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let t1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let t2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let t3: bool = false; // 4. Define variable of type `char` and value `a` let t4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (t1, t2, t3, t4);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let var_1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let var_2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let var_3: bool = false; // 4. Define variable of type `char` and value `a` let var_4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (var_1, var_2, var_3, var_4)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let var_1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let var_2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let var_3: bool = false; // 4. Define variable of type `char` and value `a` let var_4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined let result: (u8, f64, bool, char) = (var_1, var_2, var_3, var_4); result}
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 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 v1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let v2 = 3.14; // 3. Define variable of type `bool` and value `false` let v3 = false; // 4. Define variable of type `char` and value `a` let v4 = 'a'; // 5. Return a tuple with the variables in the order they were defined (v1, v2, v3, v4)}
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 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 v1 = 42_u8; // 2. Define variable of type `f64` and value `3.14` let v2 = 3.14_f64; // 3. Define variable of type `bool` and value `false` let v3 = false; // 4. Define variable of type `char` and value `a` let v4 = 'a'; // 5. Return a tuple with the variables in the order they were defined (v1, v2, v3, v4)}
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 var: 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 (var, 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 (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let unsigned8: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let floating64: 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 return (unsigned8, floating64, boolean, character)}
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 c : char = 'a'; // 5. Return a tuple with the variables in the order they were defined let tup : (u8,f64,bool,char) =(x,y,b,c); tup}
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 u: char = 'a'; (x, y, z, u)}
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 mybool: bool = false; // 4. Define variable of type `char` and value `a` let mychar: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (meaning, pi, mybool, mychar)}
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 return (val1, val2, val3, val4);}
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 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 w : char = 'a'; // 5. Return a tuple with the variables in the order they were defined (x, y ,z ,w)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let r: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let u: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let s: bool = false; // 4. Define variable of type `char` and value `a` let t: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (r,u,s,t)}
pub fn data_types() -> (u8, f64, bool, char) { let v1: u8 = 42; let v2: f64 = 3.14; let v3: bool = false; let v4: char = 'a'; let person = (v1, v2, v3, v4); person}
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 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 let person = (x, b, c, d); person}
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 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 t:char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (a,b,c,t)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let v1 : u8 = 42 ; // 2. Define variable of type `f64` and value `3.14` let v2 : f64 = 3.14 ; // 3. Define variable of type `bool` and value `false` let v3 : bool = false ; // 4. Define variable of type `char` and value `a` let v4 : char = 'a' ; // 5. Return a tuple with the variables in the order they were defined (v1,v2,v3,v4)}
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 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` // 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'; 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 (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) { // 1. Define variable of type `u8` and value `42` let unint = 42; // 2. Define variable of type `f64` and value `3.14` let floaty = 3.14; // 3. Define variable of type `bool` and value `false` let truthy: bool = false; // 4. Define variable of type `char` and value `a` let charact = 'a'; // 5. Return a tuple with the variables in the order they were defined (unint, floaty, truthy, charact)}
pub fn data_types() -> (u8, f64, bool, char) { let integer: u8 = 42; let floating_num: f64 = 3.14; let boolean: bool = false; let character: char = 'a'; (integer, floating_num, 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 return (a, b, c, d)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let v1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let v2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let v3: bool = false; // 4. Define variable of type `char` and value `a` let v4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (v1, v2, v3, v4)}
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 value: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let value2: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let value3: bool = false; // 4. Define variable of type `char` and value `a` let value4: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (value, value2, value3,value4)}
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 b:bool = false; // 4. Define variable of type `char` and value `a` let a:char = 'a'; // 5. Return a tuple with the variables in the order they were defined (x, pi, b, a)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let answer: 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 nope: bool = false; // 4. Define variable of type `char` and value `a` let a: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (answer, pi, nope, a)}
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 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` // 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_variable: u8 = 42; let floating_variable: f64 = 3.14; let boolean_variable: bool = false; let char_variable: char = 'a'; (integer_variable, floating_variable, boolean_variable, char_variable)}
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 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 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 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)}