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cal.html
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45 lines (42 loc) · 1.41 KB
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script>
// 1 create function
function printresult(){
let number1 = document.getElementById("number1").value;
let number2 = document.getElementById("number2").value;
let opp = document.getElementById("opp").value;
switch(opp){
case '+': document.getElementById("result").innerHTML = +number1 + +number2;
break;
case '-': document.getElementById("result").innerHTML = number1 - number2;
break;
case '*': document.getElementById("result").innerHTML = number1 * number2;
break;
case '/': document.getElementById("result").innerHTML = number1 / number2;
break;
}
}
</script>
</head>
<body>
<label>Number 1</label>
<input type="text" id="number1">
<select id="opp">
<option value="+">+</option>
<option value="-">-</option>
<option value="*">*</option>
<option value="/">/</option>
</select>
<label>Number 2</label>
<input type="text" id="number2">
<br>
<br>
<button onclick="printresult()">GET Result</button>
<h1>Result : <span id="result"></span></h1>
</body>
</html>