how to use confirm in javascript code example

Example 1: javascript confirm yes no

var proceed = confirm("Are you sure you want to proceed?");
if (proceed) {
  //proceed
} else {
  //don't proceed
}

Example 2: alert confirm prompt javascript

if (confirm("Press a button!")) {
    console.log("Accepted")
  } else {
    console.log("Declined")
  }

Example 3: confirm javascript

if (window.confirm("Une nouvelle fenêtre va s'ouvrir.")) {
    window.open("fenetre.html", "Nouvelle fenêtre", "");
}