Created
February 23, 2017 22:03
-
-
Save emygeek/4d74971b9f920349ba933e0ec09d85ed to your computer and use it in GitHub Desktop.
Javascript Calculator (Free Code Camp)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<section id="main"> | |
<div class="container"> | |
<div class="row"> | |
<div class="col-md-6 col-sm-6 col-xs-6 col-md-offset-3 col-sm-offset-3 col-xs-offset-3 text-center"> | |
<h1>Calculator</h1> | |
<div class="wrapper"> | |
<div class="row"> | |
<label id="output-screen" class="form-control"></label> | |
</div> | |
<div class="pad"> | |
<div class="row"> | |
<button class="btn pad-btn" data-ref="key" data-val="7">7</button> | |
<button class="btn pad-btn" data-ref="key" data-val="8">8</button> | |
<button class="btn pad-btn" data-ref="key" data-val="9">9</button> | |
<button class="btn pad-btn" data-val="DEL">DEL</button> | |
<button class="btn pad-btn" data-val="AC">AC</button> | |
</div> | |
<div class="row"> | |
<button class="btn pad-btn" data-ref="key" data-val="4">4</button> | |
<button class="btn pad-btn" data-ref="key" data-val="5">5</button> | |
<button class="btn pad-btn" data-ref="key" data-val="6">6</button> | |
<button class="btn pad-btn" data-ref="operand" data-val="*">x</button> | |
<button class="btn pad-btn" data-ref="operand" data-val="/">:</button> | |
</div> | |
<div class="row"> | |
<button class="btn pad-btn" data-ref="key" data-val="1">1</button> | |
<button class="btn pad-btn" data-ref="key" data-val="2">2</button> | |
<button class="btn pad-btn" data-ref="key" data-val="3">3</button> | |
<button class="btn pad-btn" data-ref="operand" data-val="+">+</button> | |
<button class="btn pad-btn" data-ref="operand" data-val="-">-</button> | |
</div> | |
<div class="row"> | |
<button class="btn pad-btn" data-ref="key" data-val="0">0</button> | |
<button class="btn pad-btn" data-ref="key" data-val=".">.</button> | |
<button class="btn pad-btn" data-val="(">(</button> | |
<button class="btn pad-btn" data-val=")">)</button> | |
<button class="btn pad-btn" data-ref="equal" data-val="=">=</button> | |
</div> | |
</div> <!-- end of pad --> | |
</div> | |
</div> | |
</div> | |
</div> | |
</section> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
$(document).ready(function(){ | |
var output = ""; | |
var arrayNum = []; | |
$('.pad-btn').click(function(){ | |
var ref = $(this).attr('data-ref'); | |
if(ref === 'key'){ | |
var val = $(this).attr('data-val'); | |
$('#output-screen').append(val); | |
}else if(ref ==='operand' && $('#output-screen').text() != ''){ | |
var part = $('#output-screen').text(); | |
arrayNum.push(part); | |
var operation = $(this).attr('data-val'); | |
arrayNum.push(operation); | |
clearScreen(); | |
console.log(arrayNum); | |
}else if(ref === 'equal' ){ //also check array not empty | |
var part = $('#output-screen').text(); | |
arrayNum.push(part); | |
console.log(arrayNum); | |
calculate(); | |
} | |
}); | |
function clearScreen(){ | |
$('#output-screen').text(''); | |
} | |
function calculate(){ | |
var toPerform = ""; | |
toPerform = arrayNum.join(""); | |
var result = eval(toPerform); | |
$('#output-screen').text(result); | |
} | |
}); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
body{ | |
background: #c0392b | |
} | |
section{ | |
} | |
.wrapper{ | |
overflow:hidden; | |
box-shadow:0px 0px 3px #333; | |
} | |
.pad-btn{ | |
width:50px; | |
margin:5px; | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" /> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
This is v1. Mostly concerned with getting the basic functionality (add, delete, subtract, multiply) to work.
Subsequent versions will include more validation and improved UI.