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<!DOCTYPE html>
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<html lang="en">
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    <head>
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      <meta charset="UTF-8">
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      <title>Return Values from a Function</title>
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    </head>
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    <body>
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      <script>
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       // Defining function
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       function addTwoNumbers(number1, number2) {
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       let total = number1 + number2;
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       return total;
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       }
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       // Calling function
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       let sum = addTwoNumbers (3, 10); // 0utputs: 13
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       alert(sum);
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       //alert(addTwoNumbers (3, 10));
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      </script>
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    </body>
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</html>