1var proceed = confirm("Are you sure you want to proceed?");
2if (proceed) {
3  //proceed
4} else {
5  //don't proceed
6}

1  if (confirm("Press a button!")) {
2    console.log("Accepted")
3  } else {
4    console.log("Declined")
5  }

1if (window.confirm("Une nouvelle fenêtre va s'ouvrir.")) {
2    window.open("fenetre.html", "Nouvelle fenêtre", "");
3}

1$.alert({    title: 'Alert!',    content: 'Simple alert!',});

1
2 window.confirm("sometext");

1// The confirm function is used to display a dialog with ok and cancel. Usage:
2
3var content = confirm("Hello"); // The "hello" means to show the following text
4if (content === true) {
5  // Do whatever if the user clicked ok.
6} else {
7  // Do whatever if the user clicks cancel.
8}
9
10// You can also use window.confirm()