I am using node.js and stdin, but the program ends before the user can input their binary to be evaluated

Question

I am using node.js and stdin, but the program ends before the user can input their binary to be evaluated.

let stdin = process.stdin;
process.addListener("data", function(l) {
  let input = l.toString().trim();

  setTimeout(function() {
    console.log("You entered"+"["+input+"]"+"Calculating...")
   }, 100);

   console.log(parseInt(input, 2));

});

Answer 1

You need to call addListener on stdin you declared on first line, like this:

let stdin = process.stdin;
stdin.addListener("data", function(l) {
  let input = l.toString().trim();

  setTimeout(function() {
    console.log("You entered"+"["+input+"]"+"Calculating...")
  }, 100);

  console.log(parseInt(input, 2));
});