JSFiddle - React, Tailwind, and code Playground
by shahrukh007
HTML
<html>
<head>
</head>
<body>
<form name="formdata">
<input type="text" name="txt">
<input type="button" value="C" name="btnc" onclick="txt.value=''"><br>
<input type="button" value="9" name="btn9" onclick="myfunc(btn9.value)">
<input type="button" value="8" name="btn8" onclick="myfunc(btn8.value)">
<input type="button" value="7" name="btn7" onclick="myfunc(btn7.value)"><br>
<input type="button" value="6" name="btn6" onclick="myfunc(btn6.value)">
<input type="button" value="5" name="btn5" onclick="myfunc(btn5.value)">
<input type="button" value="4" name="btn4" onclick="myfunc(btn4.value)"><br>
<input type="button" value="3" name="btn3" onclick="myfunc(btn3.value)">
<input type="button" value="2" name="btn2" onclick="myfunc(btn2.value)">
<input type="button" value="1" name="btn1" onclick="myfunc(btn1.value)"><br>
<input type="button" value="+" name="btnadd" onclick="myfunc(btnadd.value)">
<input type="button" value="*" name="btnmul" onclick="myfunc(btnmul.value)">
<input type="button" value="/" name="btndvd" onclick="myfunc(btndvd.value)"><br>
<input type="button" value="-" name="btnsub" onclick="myfunc(btnsub.value)">
<input type="button" value="0" name="btn0" onclick="myfunc(btn0.value)">
<input type="button" value="=" name="btnequal" onclick="txt.value=eval(txt.value)">
</form>
<script>
function myfunc(x){
formdata.txt.value=formdata.txt.value+x;
alert();
}
</script>
</body>
</html>