i'm trying to use exec function in nodejs, but it's not working.

Here is the code that i'm runing :

import { exec } from "child_process";

exec("ssh ubuntu@myserverip", (error, stdout, stderr) => {
    if (error) {
        console.error(`error: ${error.message}`);
    }

    if (stderr) {
        console.error(`stderr: ${stderr}`);
    }

    else {
        console.log(`stdout:\n${stdout}`);
    }
});

And that it what it returns :

While this is the output if I directly write on terminal :

Any idea about how can I fix it ?