To design a web application for a standard calculator with minimum five operations.
Clone the github repository and create Django admin interface.
Change settings.py file to allow request from all hosts.
Use CSS for creating attractive colors.
Write JavaScript program for implementing five different operations.
Validate the HTML and CSS code.
Publish the website in the given URL.
calc.html
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Calculator</title>
<link rel="stylesheet" href="style.css">
</head>
<body style= "background-image: url('theme.jpg')" align="center">
<div class="card">
<div class="calculator">
<h3 class="card-title" >JAYA VARSHA.T<br>212223040075</h3>
<form>
<div class="display">
<input type="text" name="display">
</div>
<div>
<input type="button" value="AC" onclick="display.value = '' " class="operator">
<input type="button" value="DEL" onclick="display.value = display.value.toString().slice(0,-1)" class="operator">
<input type="button" value="." onclick="display.value += '.' " class="operator">
<input type="button" value="/" onclick="display.value += '/' " class="operator">
</div>
<div>
<input type="button" value="7" onclick="display.value += '7' ">
<input type="button" value="8" onclick="display.value += '8' ">
<input type="button" value="9" onclick="display.value += '9' ">
<input type="button" value="*" onclick="display.value += '*' " class="operator">
</div>
<div>
<input type="button" value="4" onclick="display.value += '4' ">
<input type="button" value="5" onclick="display.value += '5' ">
<input type="button" value="6" onclick="display.value += '6' ">
<input type="button" value="-" onclick="display.value += '-' " class="operator">
</div>
<div>
<input type="button" value="1" onclick="display.value += '1' ">
<input type="button" value="2" onclick="display.value += '2' ">
<input type="button" value="3" onclick="display.value += '3' ">
<input type="button" value="+" onclick="display.value += '+' "class="operator">
</div>
<div>
<input type="button" value="%" onclick="display.value +='%' " class="operator">
<input type="button" value="0" onclick="display.value += '0' ">
<input type="button" value="=" onclick="display.value = eval(display.value)"class="equal operator">
</div>
</form>
</div>
</div>
<script src="index.js"></script>
</body>
</html>
style.css
body
{
width:95%;
height:90vh;
display: flex;
justify-content: center;
align-items: center;
background: linear-gradient(90deg, #000000 0,#000000 58%);
background-attachment: fixed;
background-repeat: no-repeat;
background-size: cover;
}
.card-title {
font-size: 22px;
}
p, a {
font-size: 1rem;
}
a {
color: #4d4ae8;
text-decoration: none;
}
.shape {
position: absolute;
width: 150px;
top: .5rem;
left: .5rem;
}
.calculator{
background: #3a4452;
padding: 20px;
border-radius: 10px;
width: 400px;
height: auto;
backdrop-filter: blur(50%);
background-color: plum;
border-radius: 10px;
box-shadow: 0 15px 30px rgb(0, 0, 0);
backdrop-filter: blur(4px);
-webkit-backdrop-filter: blur(4px);
padding: 20px;
}
.calculator form input{
border: 0;
outline: 0;
width: 60;
height: 60px;
border-radius: 10px;
box-shadow: -8px -8px 15px rgb(0, 0, 0),5px 5px 15px rgb(0, 0, 0);
background: transparent;
font-size: 20px;
color: blue;
cursor: pointer;
margin: 10px;
}
h3{
color: black;
}
form .display{
display: flex;
justify-content: flex-end;
margin: 20px 0;
}
form .display input{
text-align: right;
flex: 1;
font-size: 45px;
box-shadow: none;
}
form input.equal{
width: 145px;
}
form input.operator{
color:black;
}
index.jss
const display = document.querySelector(".display");
const buttons = document.querySelectorAll("button");
const specialChars = ["%", "*", "/", "-", "+", "="];
let output = "";
const calculate = (btnValue) => {
display.focus();
if (btnValue === "=" && output !== "") {
output = eval(output.replace("%", "/100"));
} else if (btnValue === "AC") {
output = "";
} else if (btnValue === "DEL") {
output = output.toString().slice(0, -1);
} else {
if (output === "" && specialChars.includes(btnValue)) return;
output += btnValue;
}
display.value = output;
};
buttons.forEach((button) => {
button.addEventListener("click", (e) => calculate(e.target.dataset.value));
});
The program for designing a standard calculator using HTML and CSS is executed successfully.
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