JavaScript-Programs/calculator.html at master · shaurya619/JavaScript-Programs · GitHub

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<!DOCTYPE html>
<html>
<head>
	<title>JavaScript Calculator</title>
	<script type="text/javascript">
		function displynum(n1) {

			calcform.txt1.value=calcform.txt1.value+n1
		}
	</script>
</head>
<body bgcolor="red">
	<font color="green">
		<h1 align="center">JAVASCRIPT CALCULATOR</h1>
<p align="center"><b>BY:-</b><i>SHAURYA BARA</i> </p>


	<center>
	<br>    <br>
	<br>	<br>
	<br>	<br>
	<br>
	<br>
	<br>


	<form name="calcform">
		<input type="text" name="txt1" style="text-align: right;">
        <br><br>
		<input type="button" name="btn9" value="9" onclick="displynum(btn9.value)">
        <input type="button" name="btn8" value="8" onclick="displynum(btn8.value)">
        <input type="button" name="btn7" value="7" onclick="displynum(btn7.value)">
        <input type="button" name="addbtn" value="+" onclick="displynum(addbtn.value)">
        <br><br>
		<input type="button" name="btn6" value="6" onclick="displynum(btn6.value)">
        <input type="button" name="btn5" value="5" onclick="displynum(btn5.value)">
        <input type="button" name="btn4" value="4" onclick="displynum(btn4.value)">
        <input type="button" name="subbtn" value="-" onclick="displynum(subbtn.value)">
        <br><br>
		<input type="button" name="btn3" value="3" onclick="displynum(btn3.value)">
        <input type="button" name="btn2" value="2" onclick="displynum(btn2.value)">
        <input type="button" name="btn1" value="1" onclick="displynum(btn1.value)">
        <input type="button" name="mulbtn" value="*" onclick="displynum(mulbtn.value)">
        <br><br>
		<input type="button" name="btn0" value="0" onclick="displynum(btn0.value)">
        <input type="button" name="potbtn" value="." onclick="displynum(potbtn.value)">
        <input type="button" name="eqlbtn" value="=" onclick="txt1.value=eval(txt1.value)">
        <input type="button" name="divbtn" value="/" onclick="displynum(divbtn.value)">
        <br><br>


	</form>
	</center>
	</font>


</body>
</html>