Calculatrice style01

<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap 4 and CCS3 Product Cards with Transition  | par NGLESSON</title>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta name="author" content="Mezgani said">
  <meta name="copyright" content="NGLESSON">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
  <link rel="stylesheet" href="style.css">
</head>
<body>

    <div class='container'>
        <div id='calculator'>
      
          <!-- TITLE -->
      
          <div id='title' class='text-center'>
            <h5><b>ELECTRONIC CALCULATOR</b></h5>
          </div>
      
          <!-- ENTRY BOX -->
      
          <div id='entrybox' class='text-right'>
            <div id='entry'>
              <p id='answer'>0</p>
            </div>
            <div id='history'>
              <p>0</p>
            </div>
          </div>
      
          <!-- BUTTONS -->
      
          <div id='buttons'>
      
            <button class='red' value='ac'>AC</button>
            <button class='red' value='ce'>CE</button>
            <button value='/'>&divide;</button>
            <button value='*'>x</button>
      
            <button value='7'>7</button>
            <button value='8'>8</button>
            <button value='9'>9</button>
            <button value='-'>-</button>
      
            <button value='4'>4</button>
            <button value='5'>5</button>
            <button value='6'>6</button>
            <button value='+'>+</button>
      
      
            <button value='1'>1</button>
            <button value='2'>2</button>
            <button value='3'>3</button>
            <button class='invisible'>N</button>
      
            <button id='zeroButton' value='0'>0</button>
            <button value='.'>.</button>
            <button id='equalButton' value='='>=</button>
      
          </div>
          <!-- end buttons -->
          <div id='tester'></div>
        </div>
        <!-- end calculator -->
      </div>
      <!-- end container -->



  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>  
  <script src="script.js"></script>  
</body>
</html>
body {
    font-family: 'Orbitron', sans-serif;
    background-color: #818181;
  }
  
  #calculator {
    height: 410px;
    width: 300px;
    margin-top: 10%;
    margin-left: auto;
    margin-right: auto;
    background-color: #dfd8d0;
    border: 2px solid #908b85;
    border-radius: 20px;
    box-shadow: 7px 10px 34px 1px rgba(0, 0, 0, 0.68), inset -1px -6px 12px 0.1px #89847e;
  }
  
  #title {
    padding-top: 10px;
    padding-bottom: 10px;
  }
  
  #entrybox {
    width: 85%;
    height: 65px;
    margin-left: auto;
    margin-right: auto;
    border: 2px solid #b4b39d;
    border-radius: 6px;
    background-color: #c3c2ab;
  }
  
  #entry {
    margin-right: 10px;
    font-size: 35px;
  }
  
  #buttons {
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    position: absolute;
    display: inline-block;
    width: 280px;
    height: auto;
    margin-top: 15px;
    margin-left: 15px;
  }
  
  button {
    border-radius: 8px;
    border: none;
    background-color: #3a3a3a;
    margin: 0 4px 10px 8px;
    height: 40px;
    width: 50px;
    box-shadow: 0px 3px 0px 0px #222121, inset -1px -3px 10px 1px #515151;
  }
  
  button:active {
    transform: translate(0px, 3px);
    box-shadow: none;
  }
  
  .row {
    margin-top: 20px
  }
  
  #topAdjust {
    margin-top: -52px;
  }
  
  #equalButton {
    position: absolute;
    margin-left: 12px;
    margin-top: -50px;
    height: 90px;
  }
  
  #zeroButton {
    width: 117px;
  }
  
  .red {
    font-size: 14px;
    background-color: #a72d45;
    box-shadow: 0px 3px 0px 0px #671c2a;
  }
 
  
  button,
  button:hover,
  button:active,
  button:visited {
    text-decoration: none !important;
    outline: none !important;
  }
  
  a,
  a:hover,
  a:active,
  a:visited {
    color: #922031;
    text-decoration: none !important;
    outline: none !important;
  }
  
  #history {
    /*transform: translate(-13px, -17px);*/
    position: relative;
    height: 10px;
    bottom: 17px;
    margin-right: 14px;
    color: #8b8b7b;
    font-size: 12px;
  }
// final draft
$(document).ready(function() {

    var entry = '';
    var ans = '';
    var current = '';
    var log = '';
    var decimal = true;
    var reset = '';
  
    // round function if answer includes a decimal
    function round(val) {
      val = val.toString().split('');
      if (val.indexOf('.') !== -1) {
        var valTest = val.slice(val.indexOf('.') + 1, val.length);
        val = val.slice(0, val.indexOf('.') + 1);
        var i = 0;
        while (valTest[i] < 1) {
          i++
        }
        valTest = valTest.join('').slice(0, i + 2);
        if (valTest[valTest.length-1] === '0') {
          valTest = valTest.slice(0, -1);
        }
        return val.join('') + valTest;
      } else {
        return val.join('');
      }
    }
  
    $('button').click(function() {
  
      entry = $(this).attr("value");
      console.log('entry: ' + entry);
  
      //reset for log after answer to equation.
      if (reset) {
        if (entry === '/' || entry === '*' || entry === '-' || entry === '+') {
          log = ans;
        } else {
          ans = '';
        }
      }
      reset = false;
  
      // All clear or Clear Entry
      if (entry === 'ac' || entry === 'ce' && current === 'noChange') {
        ans = '';
        current = '';
        entry = '';
        log = '';
        $('#history').html('0');
        $('#answer').html('0');
        decimal = true;
      } else if (entry === 'ce') {
        $('#history').html(log.slice(0, -current.length));
        log = log.slice(0, -current.length);
        ans = ans.slice(0, -current.length);
        current = ans;
        if (log.length === 0 || log === ' ') {
          $('#history').html('0');
        }
        $('#answer').html('0');
        entry = '';
        decimal = true;
      }
  
      // prevents more than one deciminal in a number
      if (entry === '.' || entry === '0.') {
        if (!decimal) {
          entry = '';
        }
      }
  
      // prevents improper use of first digit
      if (ans.length === 0 && isNaN(entry) && entry !== '.' || ans.length === 0 && entry === '0') {
        entry = '';
        ans = '';
      }
  
      // prevents extra operators
      if (current !== 'noChange') {
        if (current === '' && isNaN(entry) && entry !== '.' || isNaN(current) && isNaN(entry) && entry !== '.') {
          entry = '';
        }
      }
  
      // digit combining
      while (Number(entry) || entry === '0' || current === '.') {
  
        if (isNaN(current) && entry === '0' && current !== '.') {
          entry = '';
        } else if (isNaN(current) && Number(entry) && current !== '.') {
          current = '';
        }
        if (entry === '.') {
          decimal = false;
        }
        if (current === '0.' && isNaN(entry)) {
          entry = '';
        } else {
          if (current[current.length - 1] === '.') {
            current = current.concat(entry);
          } else {
            current += entry;
          }
          ans += entry;
          $('#answer').html(current);
          log += entry;
          $('#history').html(log);
          entry = '';
        }
      }
  
      // Operation list
  
      if (entry === '.') {
        if (current === '' || isNaN(current[current.length - 1])) {
          current = '0.';
          ans += entry;
          $('#answer').html('0.');
          log += current;
          $('#history').html(log);
  
        } else {
          current = current.concat('.');
          ans = ans.concat('.');
          log = ans;
          $('#history').html(ans);
          $('#answer').html(current);
        }
        entry = '';
        decimal = false;
  
      } else if (entry === '/') {
        current = '/';
        ans = round(eval(ans)) + current;
        log += current;
        $('#history').html(log);
        $('#answer').html('/');
        entry = '';
        decimal = true;
  
      } else if (entry === '*') {
        current = '*';
        ans = round(eval(ans)) + current;
        log += 'x';
        $('#history').html(log);
        $('#answer').html('x');
        entry = '';
        decimal = true;
  
      } else if (entry === '-') {
        current = '-';
        ans = round(eval(ans)) + current;
        log += current;
        $('#history').html(log);
        $('#answer').html('-');
        entry = '';
        decimal = true;
  
      } else if (entry === '+') {
        current = '+';
        ans = round(eval(ans)) + current;
        log += current;
        $('#history').html(log);
        $('#answer').html('+');
        entry = '';
        decimal = true;
  
      } else if (entry === '=') {
        if (current[current.length - 1] === '.') {
          entry = '';
        } else {
          current = eval(ans).toString();
          $('#answer').html(round(eval(ans)));
          ans = round(eval(ans));
          log += entry + ans;
          $('#history').html(log);
          log = ans;
          entry = '';
          reset = true;
          decimal = true;
        }
        current = 'noChange';
      }
      entry = '';
  
      if (reset) {
        log = '';
      }
  
      // max digits on screen
      if ($('#entry').children().text().length > 8 || $('#history').text().length > 22) {
        $('#answer').html('0');
        $('#history').html('Digit Limit Met');
        current = '';
        ans = '';
        log = '';
        decimal = true;
      }
  
      console.log('decimal: ' + decimal);
      console.log('current: ' + current);
      console.log('answer: ' + ans);
      console.log($('#history').text().length);
    });
  }); // end doc ready function
texte animate effects style 01

texte animate effects style 01

page scroll progress bar

page scroll progress bar

Table responsive avec css native

Table responsive avec css native

Social Media Icons

Social Media Icons

Responsive image grid

Responsive image grid

Image hover 05

Image hover 05

Image hover 01

Image hover 01

Footer Responsive avec Bootstrap4

Footer Responsive avec Bootstrap4

Drag and drop or upload input file

Drag and drop or upload input file

Carousel Bootstrap4

Carousel Bootstrap4

Carousel 8 bloc with B4

Carousel 8 bloc with B4

3D Gallery with CSS3 and jQuery

3D Gallery with CSS3 and jQuery