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JavaScript-Basics-Examples

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calculator_typeof.html

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JavaScript-Basics-Examples

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calculator_typeof.html

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18 lines (15 loc) · 290 Bytes

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<html>

<head>

<title>Calculator with type checking</title>

<script type="text/javascript">

var calculator = function(a,b) {

if(typeof(a) !== "number" || typeof(b) !== "number") {

return false;

}

return a+b;

}

</script>

</head>

<body>

</body>

</html>

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