javascript popup

 alert("Hello! I am an alert box!!");

 

var cars = ['mazda', 'honda', 'tesla'];
var telsa=cars.pop(); //cars is now just mazda,honda 

alert("this is the alert")

alert("string");

function alertSomethingOrPopUp()
{
  alert("Hi! This is a popup!");
}
alertSomethingOrPopUp();

alert("I am an alert box!");

  

alert(user);

 window.prompt("sometext","defaultText");