dz4-javascript/dz4.html at master · kualme/dz4-javascript · GitHub

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<!DOCTYPE HTML SYSTEM>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js" type="text/javascript"></script>
<title>Калькулятор</title>
<meta charset="utf-8">
<style type="text/css">
.layout {
width: 385px;
height: 505px;
padding: 10px;
background-color: #9ecdce;
border-radius: 10px;
box-shadow: 0 0 10px rgba(0,0,0,0.5);
}
.calculator {
width: 380px;
height: 500px;
background-color: #9ecdce;
}
.button_number {
width: 100px;
height: 100px;
background-color: #cce0f5;
text-align: center;
border: 2px black;
border-radius: 50px;
box-shadow: 0 0 10px rgba(0,0,0,0.5);
font-size: 30px;
}
.button_operation, .button_equality {
width: 80px;
height: 80px;
background-color: #cce0f5;
text-align: center;
border-radius: 60px;
box-shadow: 0 0 10px rgba(0,0,0,0.5);
font-size: 25px;
}
.button_empty{
width: 100px;
height: 100px;
}
.button_number:hover, .button_operation:hover, .button_equality:hover {
background-color: #5eacae;
}
.numbers {
background-color: #9ecdce;
width: 300px;
height: 401px;
float: left;
}
.operations {
background-color: #9ecdce;
width: 80px;
height: 3px;
float: right;
}
.row {
width: 380px;
height: 100px;
font-size: 30px;
background-color: #c4e1e1;
display: inline-block;
float: right;
border-radius: 10px;
}
</style>
</head>
<body>
<div class="layout">
<div class="calculator">
<div class="row"><p id="output"></p></div>
<table class="numbers">
	<tr>
		<td id="1" class="button_number">1</td><td id="2" class="button_number">2</td><td id="3" class="button_number">3</td>
	</tr>
	<tr>
		<td id="4" class="button_number">4</td><td id="5" class="button_number">5</td><td id="6" class="button_number">6</td>
	</tr>
	<tr>
		<td id="7" class="button_number">7</td><td id="8" class="button_number">8</td><td id="9" class="button_number">9</td>
	</tr>
	<tr>
		<td class="button_empty"></td><td id="0" class="button_number">0</td><td class="button_empty"></td>
	</tr>
</table>

<table class="operations">
	<tr><td id="+" class="button_operation">+</td></tr>
	<tr><td id="-" class="button_operation">-</td></tr>
	<tr><td id="*" class="button_operation">*</td></tr>
	<tr><td id="/" class="button_operation">/</td></tr>
	<tr><td id="=" class="button_equality">=</td></tr>
</table>
</div>
</div>
<script language="JavaScript" type="text/javascript">
$(document).ready(function() {
	var x = 0;
	var op;
	var y = 0;
	var changed = false;
    $('.button_number').click(function(event) {
        if (op === undefined)
		{
			x = x * 10 + parseFloat($(this).attr("id"));
			$('#output').text(x);
		}
		else
		{
			changed = true;
			y = y * 10 + parseFloat($(this).attr("id"));
		$('#output').text(x + " " + op + " " + y);
		}
    });
	$('.button_operation').click(function(event) {

		op = $(this).attr("id");
		$('#output').text(x + " " + op);
    });
	$('.button_equality').click(function(event) {
        if (op !== undefined)
		{
			var res;
			switch(op)
			{
				case '+': res = x + y;
					break;
				case '-': res = x - y;
					break;
				case '*': res = x * y;
					break;
				case '/': res = x / y;
			}
			if (changed)
			{
				$('#output').text(res);
			}
			else
			{
				$('#output').text("Wrong Format");
			}
			x = 0;
			y = 0;
			op = undefined;
		}
    });

});
</script>
</body>
</html>