How to use confirm using sweet alert?

Question

In this code form is submitted even i am clicking on no

document.querySelector(\'#from1\').onsubmit = function(){

 swal({
    title: \"Are you sure?\",
             


        

Answer 1

swal({
    title: 'Are you sure?',
    text: "You won't be able to revert this!",
    type: 'warning',
    showCancelButton: true,
    confirmButtonColor: '#3085d6',
    cancelButtonColor: '#d33',
    confirmButtonText: 'Confirm!'
}).then(function(){
    alert("The confirm button was clicked");
}).catch(function(reason){
    alert("The alert was dismissed by the user: "+reason);
});