How to making live clock in single line console log format in NodeJS

Question

In browser, we can making the live clock in single line display by using setInterval and replacing content inside HTML element like this:

var span = document.getElementById('span');

    function time() {
      var d = new Date();
      var s = d.getSeconds();
      var m = d.getMinutes();
      var h = d.getHours();
      span.textContent = 
        ("0" + h).substr(-2) + ":" + ("0" + m).substr(-2) + ":" + ("0" + s).substr(-2);
    }
setInterval(time, 1000);

<span id="span"></span>

But, how we can do it the same thing in terminal console with NodeJS? If we use console.log and setInterval it will create new line. Like this:

07:00:01
07:00:02
07:00:03
07:00:04

I just want to display console.log live clock in single line on terminal.

@jarmod No, still need example code to display live clock in single line console.log terminal .. Which is need forever loop implementation like setInterval — Adam Satria Gunadi, Oct 22 '21 at 00:24

score 2 · Accepted Answer · answered Oct 22 '21 at 00:21

2

You w ant to use \r to terminate the previous line with stdout.

    setInterval(() => process.stdout.write(`${new Date()}\r`), 1000);

answered Oct 22 '21 at 00:21

Michael Mano

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How to making live clock in single line console log format in NodeJS

1 Answers1