How to make if else statement using prompt

Question

I want to make a if else statement using prompt, like if someone enter a thing that i want, it will show this else show that.. Can anyone teach me how to do it?

Answer 1

var input = prompt();

if(input == "something")
// do this
else
// do this

Answer 2

There are many ways to do an if/else statement. Please narrow it down to a language or specific code question?

Answer 3

Thanks for the help

Answer 4

var person = prompt("Please enter your name", "Blugon");

if (person == null || person == "") {
txt = "User cancelled the prompt.";
} else {
txt = "Hello " + person + "! How are you today?";
}

alert(txt);

txt is String variable (but no declaration in JavaScript).

Answer 5

What does the
(person == null || person == '")
Means?

Answer 6

person == null or person == ""

Answer 7

|| is or operator @Blugon