How to clear the terminal screen in Rust after a new line is printed?

Question

I have printed some text using println! and now I need to clear the terminal and write the new text instead of the old. How can I clear all the current text from terminal?

I have tried this code, but it only clears the current line and 1 is still in the output.

fn main() {     println!("1");     print!("2");     print!("\r"); } 

Answer 1

You can send a control character to clear the terminal screen.

fn main() {     print!("{}[2J", 27 as char); } 

Or to also position the cursor at row 1, column 1:

print!("{esc}[2J{esc}[1;1H", esc = 27 as char); 

Answer 2

print!("\x1B[2J\x1B[1;1H"); 

This will clear the screen and put the cursor at first row & first col of the screen.