Code only runs the first if function, or sometimes all of them at once

Question

I'm trying to make a simple calculator. As of right now though, the code only executes the first line, meaning it only divides. Sometimes it'll run all four ifs at the same time, even if you only enter the '/' operand or the '+' operand. I've tried using else if but it doesn't seem to work.

<html>
<head>Js Assignment</head>
<body>
    <script type="text/javascript">
        let firstNumber = prompt('enter the first number');
        let operand = prompt('enter the operand');
        let secondNumber = prompt('enter the second number');
        
        if (operand = '/') {
            alert(firstNumber/secondNumber);
        }
        if (operand = '*') {
            alert(firstNumber*secondNumber);
        }
        if (operand = '+') {
            alert(firstNumber+secondNumber);
        }
        if (operand = '-') {
            alert(firstNumber-secondNumber);
        }
    </script>
</body>

One `=` is for assigning a value to a variable, use `==` or `===` to compare a value to another value — Nick Parsons, Apr 18 '21 at 04:33

score 0 · Answer 1 · answered Apr 18 '21 at 04:34

u have to use == to compare

<html>
<head>Js Assignment</head>
<body>
    <script type="text/javascript">
        let firstNumber = prompt('enter the first number');
        let operand = prompt('enter the operand');
        let secondNumber = prompt('enter the second number');
        
        if (operand == '/') {
            alert(firstNumber/secondNumber);
        }
        if (operand == '*') {
            alert(firstNumber*secondNumber);
        }
        if (operand == '+') {
            alert(firstNumber+secondNumber);
        }
        if (operand == '-') {
            alert(firstNumber-secondNumber);
        }
    </script>
</body>

Code only runs the first if function, or sometimes all of them at once

1 Answers1