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 u8_variable: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let f64_variable: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let bool_variable: bool = false; // 4. Define variable of type `char` and value `a` let char_variable:char = 'a'; // 5. Return a tuple with the variables in the order they were defined let tuple_variable:(u8, f64, bool, char) = (u8_variable, f64_variable, bool_variable, char_variable); return tuple_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 unsignedeight: u8 = 42; let floating: f64 = 3.14; let boolean: bool = false; let character: char = 'a'; (unsignedeight, floating, boolean, character)}
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 unsignedeight: u8 = 42; let floating: f64 = 3.14; let boolean: bool = false; let character: char = 'a'; (unsignedeight, floating, 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 z: 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,y,z,a)}
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 let x = (one, two, three, four); x}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let u_8: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let f_64: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let b_ool: bool = false; // 4. Define variable of type `char` and value `a` let ch_ar: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (u_8, f_64, b_ool, ch_ar);}
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 sec: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let thi: bool = false; // 4. Define variable of type `char` and value `a` let fou: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (first, sec, thi, fou)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let fir: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let sec: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let thir: 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 (fir, sec, thir, 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 (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 typeU8: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let typef64: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let typeBool:bool = false; // 4. Define variable of type `char` and value `a` let typeChar:char = 'a'; // 5. Return a tuple with the variables in the order they were defined (typeU8, typef64, typeBool, typeChar)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let ab = 42; // 2. Define variable of type `f64` and value `3.14` let cd = 3.14; // 3. Define variable of type `bool` and value `false` let ef = false; // 4. Define variable of type `char` and value `a` let gh = 'a'; // 5. Return a tuple with the variables in the order they were defined (ab, cd, ef, gh)}fn main() { let result = data_types(); println!("{:?}", result);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let my_u8: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let my_f64 = 3.14 as f64; // 3. Define variable of type `bool` and value `false` let my_bool = false; // 4. Define variable of type `char` and value `a` let my_char = 'a'; // 5. Return a tuple with the variables in the order they were defined (my_u8, my_f64, my_bool, my_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 (a, b, c, d)}
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 return (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 pi: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let non_truth: 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 (first, pi, non_truth, c);}
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'; (v1,v2,v3,v4) // 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` // 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 v1 :u8 = 42; let v2 = 3.14; let v3 = false; let v4 :char = 'a'; (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 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 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 type_01: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let type_02: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let type_03: bool = false; // 4. Define variable of type `char` and value `a` let type_04: char = 'a'; // 5. Return a tuple w`th the variables in the order they were defined let _type_05: (u8, u8) = (36, 30); (type_01, type_02, type_03, type_04)}
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 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 Integer: 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 let Tuple: (u8, f64, bool, char) = (Integer, Float, Boolean, Character); return Tuple;}
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) { let vu8 : u8 = 42; let vf64 : f64 = 3.14; let vbool : bool = false; let vchar : char = 'a'; (vu8, vf64, vbool, vchar)}
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 let tup: (u8, f64, bool, char) = (var1, var2, var3, var4); tup}
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 sec: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let th: bool = false; // 4. Define variable of type `char` and value `a` let fr: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (first, sec, th, fr)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let number: 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 state: bool = false; // 4. Define variable of type `char` and value `a` let huruf: char = 'a'; // 5. Return a tuple with the variables in the order they were defined (number, floating, state, huruf)}
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 var1:u8 = 42; let var2:f64 = 3.14; let var3:bool = false; let var4:char = 'a'; (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 var1: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let var2 = 3.14; // 3. Define variable of type `bool` and value `false` let var3 = false; // 4. Define variable of type `char` and value `a` let var4 = '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 u8 = 42; // 2. Define variable of type `f64` and value `3.14` let f64 = 3.14; // 3. Define variable of type `bool` and value `false` let bool = false; // 4. Define variable of type `char` and value `a` let char = 'a'; // 5. Return a tuple with the variables in the order they were defined (u8,f64,bool,char)}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let type_u8:u8 = 42; // 2. Define variable of type `f64` and value `3.14` let type_f64 = 3.14; // 3. Define variable of type `bool` and value `false` let type_bool = false; // 4. Define variable of type `char` and value `a` let type_char = 'a'; // 5. Return a tuple with the variables in the order they were defined (type_u8, type_f64, type_bool, type_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 (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 f: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let s: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let t: bool = false; // 4. Define variable of type `char` and value `a` let fo: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (f, s, t, fo);}
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 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 (t1, t2, t3, t4)}
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` // 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 tup: (u8, f64, bool, char) = (42, 3.14, false, 'a'); tup}
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 k: bool = false; // 4. Define variable of type `char` and value `a` let h: char = 'a'; // 5. Return a tuple with the variables in the order they were defined return (x, y, k, h);}
pub fn data_types() -> (u8, f64, bool, char) { // 1. Define variable of type `u8` and value `42` let unsigned: u8 = 42; // 2. Define variable of type `f64` and value `3.14` let floatingNumber: f64 = 3.14; // 3. Define variable of type `bool` and value `false` let boolean = 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 (unsigned, floatingNumber, boolean, 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 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);}