prompt(message, [default_value], [ownerWindow])

Requests user for text input in a dialog window. Returns a string as user's input or undefined when user declined to input.

Name	Type	Default	Description
`message`	string		Message to user about this text input.
`[default_value]`	string	""	Default string that will be already present in the dialog window.
`[ownerWindow]`	Window	null	Window that will be overlaid by the dialog window.

Returns user provided string, or undefined if user canceled input.

Type: string | undefined

Examples:

let response = prompt("Please enter your name:", "John Doe", this);
console.log("You entered: " + response);