CODE EXAMPLE FOR JAVASCRIPT

js window.prompt

// window.prompt(message);
/*
`window.prompt` opens a confirmation dialog with an "Ok"
and "Cancel" button. Upon receiving input, the dialog is
closed and a boolean is returned. `window.prompt` returns
the input string if the "Ok" button was pressed or null
if "Cancel" was pressed.
*/

const user_input = window.prompt("Hello, what language do you code in?");

if (user_input && user_input.trim()) {
	window.alert(user_input + "! Cool!");
} else {
	window.alert("Oh no! You don't seem to have written anything...");
}
/*
Note that this will pause code execution until the
dialog receives input.
*/