An easy way to get an input from a user is by using the
var age = prompt("How old are you?"); console.log(age); // Prints the value inserted by the user
If the user clicks the OK button, the input value is returned. Otherwise, the method returns
The return value of
prompt is always a string, unless the user clicks Cancel, in which that case it returns
null. Safari is an exception in that when the user clicks Cancel, the function returns an empty string. From there, you can convert the return value to another type, such as an integer.
<iframe>unless its sandbox attribute has the value allow-modal.