Day 3.md

Day 3

Study Rust

Collection types: Arrays and Vectors

Arrays

1. let my_array=["One, Two"];
2. We can use my_array.thdaoethothed(); to get our arrays' type.

Vectors

1.    fn main(){
          let name1="Windy";
          let name2="Gomesy";
          let name3="MB";
          
          let mut my_vec=Vec::new();
          
          my_vec.push(name1);
      }
   

   If we remove my_vec.push(name1);, it will return an error because the complier does not know the type of elements in the vector.
2. let my_vec: Vec<String> = Vec::new(); let my_vec=vec![7,8,9,10]; We can create a vector like this.
3. let vec_of_ten=vec![1,2,3,4,5,6,7,8,9,10]; let three_to_five=&vec_of_ten[2..5]; We can use references to split the vector.
4. We can use my_vec.capacity() to get the capacity of a vector.

Exercises

Variables:

1. variables1.rs
2. variables2.rs
3. variables3.rs
4. variables4.rs
5. variables5.rs
6. variables6.rs

Functions

1. functions1.rs
2. functions2.rs
3. functions3.rs
4. functions4.rs
5. functions5.rs .

If

1. if1.rs
2. if2.rs