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+---
+title: Rust Traits
+subtitle: Learning Rust
+date: 2024-09-21
+tags: [ 
+    "programming", 
+    "code", 
+    "rust",
+] 
+---
+
+# Rust Traits, what are they?
+
+This concept is interesting and I wanted to write it down as I learned it. I've just started learing Rust and will have
+the terminology wrong! 
+
+Traits can be added to types to allow them to do something, as if these were classes in C++ that already had methods 
+implemented. So if I want to check if an i32 is divisible by 7, I can add: 
+
+```
+trait Sevens{
+    fn is_seven(&self) -> bool; 
+    fn divisible_by_seven(&self) -> bool;
+}
+
+impl Sevens for i32 {
+    fn divisible_by_seven(&self) -> bool{
+        self%7 == 0
+    }
+    fn is_seven(&self) -> bool{
+        7 == *self
+    }
+}
+
+impl Sevens for u32 {
+    fn divisible_by_seven(&self) -> bool{
+        self%7 == 0
+    }
+    fn is_seven(&self) -> bool{
+        7 == *self
+    }
+}
+
+fn main() {
+    let x: i32 = 9;
+    let y: u32 = 49;
+    println!("Is {} divisible by 7? {}", x, x.divisible_by_seven());
+    println!("Is {} divisible by 7? {}", y, y.divisible_by_seven());
+    println!("Is {} equal to 7? {}", y, y.is_seven());
+    println!("Is {} equal to 7? {}", 7, 7.is_seven());
+}
+```