How do I print output without a trailing newline in Rust?

Question

The macro println! in Rust always leaves a newline character at the end of each output. For example

println!(\"Enter the number : \");
io::stdin         


        

Answer 1

You can use the print! macro instead.

print!("Enter the number : ");
io::stdin().read_line(&mut num);

Beware:

Note that stdout is frequently line-buffered by default so it may be necessary to use io::stdout().flush() to ensure the output is emitted immediately.