确定浏览器的关闭按钮单击，刷新并转到新页面

Question

i have to clear session and delete some data from my database on browser close/refresh/location change

i need a code which could do something like this

$('cross button,refresh').click(function()
{
    preventdefault();
    // call my delete script
    $(browser).close();
});

Answer 1

$(window).on("beforeunload", function() {
  // Your code here
});

This will trigger when the user tries to leave the page.