If else with prompt

if-else-with-prompt.js

var x = prompt("Are You Sure to Exit");

if(x) {
  // someghig if user click OK / Yes
} else {
  // something if user cancle
}


// in other form

if(prompt("Are You Sure to Exit")) {
  // someghig if user click OK / Yes
} else {
  // something if user cancle
}