Code not working.

Question

var x = prompt(Enter x)
alert(x);

var op = prompt(Enter operator)
alert(op);

var y = prompt(Enter y)
alert(y);

function Calculate() {
if (op = *) {
alert(x * y);
} if else (op = /) {
alert(x / y);
} if else (op = +) {
alert(x + y);
} if else (op = -) {
alert(x - y);
} else {
alert("Error");
}

Answer 1

Every statement should end with a semicolon.
Your prompt function should end with it too - prompt();

Inside the prompt your string should be double quoted - prompt("Enter x");

To compare something you should use the comparison operator == and every single character should be between single quotes - if(op == '*')

Answer 2

Thank you.