Show the sign

importance: 2

Using if..else, write the code which gets a number via prompt and then shows in alert:

In this task we assume that the input is always a number.

let value = prompt('Type a number', 0);
if (value > 0) {
 alert( 1 );
} else if (value < 0) {
 alert( -1 );
} else {
 alert( 0 );
}