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calculator.html
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calculator.html
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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>
<style>
body{
background-color:black;
}
h1{
text-align: center;
background-color: aqua;
color:red;
font-size:50px;
}
#inp1{
text-align: center;
width: 450px;
height:60px;
}
input{
width:80px;
height:80px;
font-size: 35px;
border-radius:10px ;
}
#equal{
height: 300px;
}
#ac{
background-color: aqua;
}
table{
background-color: antiquewhite;
}
</style>
</head>
<body>
<h1>CALCULATOR</h1>
<Table border="3" cellpadding="20px" cellspacing="0" align="center">
<tr>
<td colspan="4" ><input id="inp1" type="text"> </td>
</tr>
<tr>
<td ><input type="button" value="+" onclick="display('+')"></td>
<td ><input type="button" value="-" onclick="display('-')"></td>
<td ><input type="button" value="*" onclick="display('*')"></td>
<td ><input type="button" value="/" onclick="display('/')"></td>
</tr>
<tr>
<td ><input type="button" value="9" onclick="display('9')"></td>
<td ><input type="button" value="8" onclick="display('8')"></td>
<td ><input type="button" value="7" onclick="display('7')"></td>
<td rowspan="3"><input type="button" value="=" id="equal" onclick="evalation()"></td>
</tr>
<tr>
<td ><input type="button" value="6" onclick="display('6')"></td>
<td ><input type="button" value="5" onclick="display('5')"></td>
<td ><input type="button" value="4" onclick="display('4')"></td>
</tr>
<tr>
<td ><input type="button" value="3" onclick="display('3')"></td>
<td ><input type="button" value="2" onclick="display('2')"></td>
<td ><input type="button" value="1" onclick="display('1')"></td>
</tr>
<tr>
<td ><input type="button" value="0" onclick="display('0')"></td>
<td ><input type="button" value="." onclick="display('.')"></td>
<td ><input type="button" value="del" onclick="delete1()"></td>
<td ><input type="button" value="AC" id="ac" onclick="ac()"></td>
</tr>
</Table>
<script>
function display(data){
//console.log(data);
let a=document.getElementById("inp1");
a.value+=data;
}
function evalation(){
let a=document.getElementById('inp1').value;
//console.log(a);
let b=eval(a);
console.log(b);
document.getElementById("inp1").value=b;
}
function ac(){
document.getElementById('inp1').value="";
}
function delete1(){
let num=document.getElementById("inp1");
//console.log(num)
num.value=num.value.slice(0,-1);
if(num.value=" "){
num.value=0;
}
}
</script>
</body>
</html>