Calculator

Developer
Codoer
Size
3,530 Kb
Views
6,072
  1. Calculator Previews
  2. Calculator HTML Codes
  3. Calculator CSS Codes
  4. Calculator JS Codes

How do I make an calculator?

What is a calculator? How do you make a calculator? This script and codes were developed by Codoer on 07 December 2022, Wednesday.

Calculator Previews
IQ Test

Calculator - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Calculator</title> <link rel='stylesheet prefetch' href='https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css'> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div class='cal'> <h1>Calculator</h1> <div class='buttonarea'> <div class='showarea'><span class='result'></span></div> <div class="row1"> <button class='button percent'>&percnt;</button> <button class='button sqrt'> &radic;</button> <button class='button square'><span id='ex'>X</span> <span class='ex2'>2</span></button> <button class='button limitb'><span class='limit'>1/</span><span class='lim'>x</span></button> </div> <div class='row2'> <button class='button CE'>CE</button> <button class='button C'>C</button> <button class='button back'>&#9003</button> <button class='button operator' value='/'>&divide;</button> </div> <div class='row3'> <button class='numbers button' value='7'>7</button> <button class='numbers button' value='8'>8</button> <button class='numbers button' value='9'>9</button> <button class='button operator' value='*'>X</button> </div> <div class='row4'> <button class='numbers button' value='4'>4</button> <button class='numbers button' value='5'>5</button> <button class='numbers button' value='6'>6</button> <button class='button operator' value='-'>-</button> </div> <div class='row5'> <button class='numbers button' value='1'>1</button> <button class='numbers button' value='2'>2</button> <button class='numbers button' value='3'>3</button> <button class='button operator' value='+'>+</button> </div> <div class='row6'> <button class='button negate'>+/-</button> <button class='numbers button' value='0'>0</button> <button class='button dot' value='.'>.</button> <button class='button equal'>=</button> </div> </div>
</div> <script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.0/jquery.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Calculator - Script Codes CSS Codes

body { background-color: #2c2c2c; background-size: cover;
}
.cal { width: 272px; margin: 0 auto; background-color: whitesmoke; height: 452px;
}
h1 { margin-top: 100px; font-size: 25px; font-weight: bold; color: black; text-align: center; padding-top: 15px;
}
.showarea { background-color: whitesmoke; font-size: 25px; text-align: right; padding-top: 4px; padding-right: 4px; width: 272px; height: 52px; margin: 0 auto;
}
.buttonarea { margin: 0 auto; text-align: center; padding-top: 22px; font-size: 0; margin-top: -25px; background: whitesmoke;
}
.button { width: 68px; height: 60px; font-size: 25px; border: none; background-color: #dedede;
}
.button:focus { outline: 0;
}
.button:hover { background-color: #c8c8c8; color: black;
}
.ex2 { position: absolute; font-size: 15px; margin-top: -2px;
}
.equal:hover { background-color: #1FAEFF;
}
h3 { text-align: right;
}

Calculator - Script Codes JS Codes

function count() { var arr = [], flag = false, oFlag = false, $result = $('.result'), percentNumber = [], percentArr = [], percentStr = '', otest = [], percentDecimal = 0; function fixNumber(x) { var num = x.toPrecision(15); return parseFloat(num); } function sub() { var str = $result.text(); if (str.length > 19) { str = str.substr(0, 19); $result.text(str); } } $('.numbers').click(function() { var val = $(this).attr('value'); function num() { var str = $result.text(); flag = false; if (arr[0] === '0' && arr.indexOf('.') === -1 && arr.indexOf('/') === -1 && arr.indexOf('*') === -1 && arr.indexOf('+') === -1 && arr.indexOf('-') === -1) { arr = []; arr = []; $result.text(''); //fix 0030, 00.03 otest.push(val); arr.push(val); $result.text($result.text() + val); return sub(); } if (oFlag && otest[0] === '0' && otest.indexOf('.') === -1 && otest.indexOf('/') === -1 && otest.indexOf('*') === -1 && otest.indexOf('+') === -1 && otest.indexOf('-') === -1) { otest = []; otest.push(val); arr.splice(-1, 1, val); str = str.substr(0, str.length - 1) + val; $result.text(str); return sub; } else { arr.push(val); otest.push(val); $result.text($result.text() + val); return sub(); } } if (!flag) { num(); } if (flag) { arr = []; $result.text(''); num(); } }); $('.dot').click(function() { otest.push('.'); function check() { var last = $result.text().slice(-1); if (last === '.') { return $result.text(); } if (arr.indexOf('.') !== -1) { $result.text(); return sub(); } else { arr.push('.'); $result.text($result.text() + '.'); return sub(); } } if (flag) { $result.text(''); flag = false; arr = []; return check(); } if (!flag) { return check(); } }); $('.operator').click(function() { otest = []; oFlag = true; flag = false; var val1 = $(this).attr('value'); var str = $result.text(); var strLen = (str.length) - 1; if (str === '') { return $result.text(''); } if (str[strLen] === '+' || str[strLen] === '-' || str[strLen] === '*' || str[strLen] === '/') { str = str.substr(0, strLen); arr.splice(-1, 1, val1); return $result.text(str + val1); } else { var arrStr = fixNumber(eval(arr.join(''))); arr = []; arr.push(arrStr); arr.push(val1); console.log(arr); return $result.text(arrStr + val1); } }); $('.equal').click(function() { flag = true; var str = $result.text(); if (str === '') { return $result.text(''); } else { var equa = eval($result.text()); $result.text(fixNumber(equa)); arr = []; arr.push(equa); percentNumber = []; percentArr = []; percentStr = ''; percentDecimal = 0; return sub(); } }); $('.limitb').click(function() { flag = true; var str = $result.text(); if (/[\+\-\*\/]/.test(arr[arr.length - 1])) { var limi = arr[0]; arr = []; arr.push(fixNumber(1 / limi)); $result.text(fixNumber(1 / limi)); return sub(); } if (str === '') { return $result.text(''); } else { var lim = eval($result.text()); $result.text(fixNumber(1 / lim)); arr = []; arr.push(fixNumber(1 / lim)); return sub(); } }); $('.negate').click(function() { flag = true; var str = $result.text(); if (/[\+\-\*\/]/.test(arr[arr.length - 1])) { var n = fixNumber(arr[0] * -1); arr = []; arr.push(n); return $result.text(n); } if (str === '') { return $result.text(''); } else { var neg = fixNumber(eval($result.text())); arr = []; arr.push(neg * -1); return $result.text(neg * -1); } }); $('.back').click(function() { oFlag = true; otest = []; function del() { var str = $result.text(); var strl = str.length - 1; arr.splice(-1, 1); $result.text(arr.join('')); sub(); } if (flag) { $result.text(); } else { del(); } }); $('.CE').click(function(){ if (flag) { arr = []; flag = false; return $result.text(''); } else { if (oFlag) { for (var i = arr.length - 1; i >= 0; i--) { if (/[\+\-\/\*]/.test(arr[i])) { $result.text(arr.join('')); return sub(); } else arr.pop(); } } else { flag = false; $result.text(''); arr = []; otest = []; } } }); $('.C').click(function() { flag = false; oFlag = false; $result.text(''); arr = []; otest = []; }); $('.square').click(function() { flag = true; var str = $result.text(); if (/[\+\-\*\/]/.test(arr[arr.length - 1])) { var n = fixNumber(arr[0] * arr[0]); arr = []; arr.push(n); $result.text(n); return sub(); } if (str === '') { return $result.text(''); } else { var squa = fixNumber(eval($result.text())); $result.text(fixNumber(squa * squa)); arr = []; arr.push(squa * squa); return sub(); } }); $('.sqrt').click(function() { flag = true; var str = $result.text(); if (/[\+\-\*\/]/.test(arr[arr.length - 1])) { var n = fixNumber(Math.sqrt(arr[0])); arr = []; arr.push(n); return $result.text(n); } if (str === '') { return $result.text(''); } else { var sqt = fixNumber(Math.sqrt(eval($result.text()))); $result.text(sqt); arr = []; arr.push(sqt); return sub(); } }); $('.percent').click(function() { function percent() { percentNumber = []; while (arr[arr.length - 1] !== '+' && arr[arr.length - 1] !== '-' && arr[arr.length - 1] !== '*' && arr[arr.length - 1] !== '/') { percentNumber.push(arr.splice(-1, 1)); } percentArr = percentNumber.reduce(function(a, b) { return a.concat(b); }, []).reverse(); percentDecimal = Number(percentArr.join('')) / 100; return percentDecimal; } if (arr.includes('+') || arr.includes('-') || arr.includes('*') || arr.includes('/')) { if (!isNaN(arr[arr.length - 1])) { var percentResult = fixNumber(eval(arr[0] * percent())); arr.push(percentResult); percentDecimal = 0; $result.text(arr.join('')); return sub(); } else { arr.push(fixNumber(eval(arr[0] * arr[0] / 100))); $result.text(arr.join('')); return sub(); } } else { arr = []; return $result.text(''); } });
}
count();
Calculator - Script Codes
Calculator - Script Codes
Home Page Home
Developer Codoer
Username c0d0er
Uploaded December 07, 2022
Rating 3
Size 3,530 Kb
Views 6,072
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