calculator

This bootstrap snippet called "calculator" was created to help web designers,
front-end developers and back-end developer save time. Use it in your project and build your app faster,
You can also download the HTML, CSS, and JS code

This is the HTML code for this bootstrap snippet

Copy, paste, change, customize and run the following HTML code to get a result like the one shown in the preview tab

İŞTE KOD 

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>JavaScript Projects</title>
    <meta ID="description" content="">
    <meta ID="viewport" content="width=device-width, initial-scale=1">
    <!-- Latest compiled and minified CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
    <style>
        #output {
            height: 45px;
            background-color: black;
            color: aqua;
            width: 100%;
            font-size: 2em;
            padding: 5px;
            text-align: right;
            margin-bottom: 25px;
            overflow: hidden;
        }
             #mycalcu {
            width: 350px;
            background-color: dimgray;
            height: 350px;
            padding: 5px;
        }
          .cbutton {
            font-size: 2em;
            width: 40px;
            margin: 4px;
            padding: 4px;
        }
        .container {
            padding: 25px;
        }
    </style>
</head>
<body>
    <div class="container">
        <div id="mycalcu">
            <div class="col-xs-12">
                <div id="output"></div>
                <div class="col-xs-12">
                    <div class="btn btn-primary cbutton">1</div>
                    <div class="btn btn-primary cbutton">2</div>
                    <div class="btn btn-primary cbutton">3</div>
                    <div class="btn btn-primary cbutton">+</div>
                    <div class="btn btn-primary cbutton">C</div>
                </div>
                <div class="col-xs-12">
                    <div class="btn btn-primary cbutton">4</div>
                    <div class="btn btn-primary cbutton">5</div>
                    <div class="btn btn-primary cbutton">6</div>
                    <div class="btn btn-primary cbutton">-</div>
                </div>
                <div class="col-xs-12">
                    <div class="btn btn-primary cbutton">7</div>
                    <div class="btn btn-primary cbutton">8</div>
                    <div class="btn btn-primary cbutton">9</div>
                    <div class="btn btn-primary cbutton">*</div>
                </div>
                <div class="col-xs-12">
                    <div class="btn btn-primary cbutton">.</div>
                    <div class="btn btn-primary cbutton">0</div>
                    <div class="btn btn-primary cbutton">=</div>
                    <div class="btn btn-primary cbutton">/</div>
                </div>
            </div>
        </div>
    </div>
    <script>
        var mybtn = document.getElementsByClassName("cbutton");
        var myOutput = document.getElementById("output");
        var myCal = '';
        var myCom = false;
        var mySwitch = false;
        var myOpe = ["+", "-", "*", "/"];
        //console.log(mybtn);
        for (var i = 0; i < mybtn.length; i++) {
            mybtn[i].addEventListener("click", function () {
                var myValue = this.innerHTML;
                if (myCom || myCal == "0") {
                    myCom = false;
                    myCal = '';
                }
                if (myValue == "+" || myValue == "-" || myValue == "*" || myValue == "/") {
                    if (mySwitch) {
                        mySwitch = false;
                        if (myOpe.indexOf(myOutput.innerHTML.slice(-1)) > -1) {
                            myCal = myCal.substring(0, myCal.length - 1);
                        } else {
                            myCal = eval(myCal);
                        }
                    }
                    mySwitch = true;
                }
                if (myValue == "=") {
                    myValue = '';
                    if (myOpe.indexOf(myOutput.innerHTML.slice(-1)) == -1) {
                        myCal = eval(myCal);
                    }
                } else if (myValue == "C") {
                    myCal = 0;
                    myCom = true;
                } else if (myOutput.innerHTML.indexOf(".") > -1 && myValue == ".") {
                    myValue = '';
                } else {
                    myCal = myCal + myValue;
                }
                myOutput.innerHTML = myCal;
            });
        }
    </script>
</body>
</html>
 

This is the CSS code for this bootstrap snippet

Copy, paste, change, customize and run the following CSS code to get a result Like the one shown in the preview

body{margin-top:20px;}
                                    

Information about this bootstrap snippet

Creator: HARUN PEHLIVAN

Bootstrap version: 3.3.7

Created: Sep 18th 2017, 17:25

Views: 187