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Дз4 #5

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42 changes: 42 additions & 0 deletions Thing.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link href="calc.css" rel="stylesheet" type="text/css" />

<title>Калькулятор</title>
</head>

<body>
<p>Для сброса пока что перезапускаем страницу.</p>
<table>
<tr><th colspan="4" id="result">0</th></tr>
<tr>
<td class="number" id="7">7</td>
<td class="number" id="8">8</td>
<td class="number" id="9">9</td>
<td class="operation" id="add">+</td>
</tr>
<tr>
<td class="number" id="4">4</td>
<td class="number" id="5">5</td>
<td class="number" id="6">6</td>
<td class="operation" id="sub">-</td>
</tr>
<tr>
<td class="number" id="1">1</td>
<td class="number" id="2">2</td>
<td class="number" id="3">3</td>
<td class="operation" id="division">/</td>
</tr>
<tr>
<td class="number" colspan="3" id="0">0</td>
<td class="operation" id="mul">*</td>
</tr>
<tr>
<td class="operation" id="enter" colspan="4">Посчитать</td>
</tr>
</table>
<script src="jquery-1.8.2.min.js"></script>
<script src="calc.js"></script>
</html>
10 changes: 10 additions & 0 deletions calc.css
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table{ border:thin #000 solid;}
td, th {
border: #009 solid;
font-size: 2em;
font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
color: #0C3;
width: 60px;
height: 30px;
vertical-align: middle;
text-align: center;}
104 changes: 104 additions & 0 deletions calc.js
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// JavaScript Document

var stack = {};
stack['result'] = 0; //Почему результат становится NaN?
stack['elements'] = ['0','+'];
stack['get_result'] = function(){
return stack['result'];
};
var numberFlag = false //Дописываем цифры если тру, начинаем писать заново если фалс
function getOperation(){
/*
Выполняет операцию для последних введёных чисел
*/
var l = stack['elements'][stack['elements'].length];
var operation = stack['elements'][l-1] ;
if (operation = 'add'){
stack['result'] = parseInt(stack['elements'][l-2]) + parseInt(stack['elements'][l])
}
else if (operation = 'sub') {
stack['result'] = parseInt(stack['elements'][l-2]) - parseInt(stack['elements'][l])
}
else if (operation = 'mul') {
stack['result'] = parseInt(stack['elements'][l-2]) * parseInt(stack['elements'][l])
}
else if (operation = 'division'){
stack['result'] = parseInt(stack['elements'][l-2]) / parseInt(stack['elements'][l])
}
else {
// Ситуация, когда ввод нажали сразу после начала работы приложения
}
stack['elements'].pop();
stack['elements'].pop();
stack['elements'].pop();
stack['elements'].push(stack['result']);
};
function forNumber(element){
/*
Ставит число в стек на обработку
*/
if ((stack['elements'][stack['elements'].length] == 'add') || (stack['elements'][stack['elements'].length] == 'mul') ||
(stack['elements'][stack['elements'].length] == 'sub') || (stack['elements'][stack['elements'].length] == 'division'))
{
stack['elements'].push(element);
}
else {
stack['elements'][stack['elements'].length] += element;
};
console.log(stack['elements']);
numberFlag = true;
};

function forOperation(operation){
/*
Добавляет оператор в очередь на обработку
*/
if ((stack['elements'][stack['elements'].length] == 'add') || (stack['elements'][stack['elements'].length] == 'mul') ||
(stack['elements'][stack['elements'].length] == 'sub') || (stack['elements'][stack['elements'].length] == 'division'))
{
stack['elements'][stack['elements'].length] = operation;
}
else {
getOperation();
stack['elements'].push(operation);
}
numberFlag = false;
};
function forResult(){
/*
Обрабатывает нажатие на 'Посчитать'
*/
getOperation();
};

$('.number').each(function(){
var current = this;
this.onclick = function(event){
var value = event.target.id;
if (numberFlag == true){
$('#result').text(document.getElementById('result').innerHTML+value);
}
else{
document.getElementById('result').innerHTML='';
$('#result').text(value);
}
forNumber(value) // Почему значение undefined+value?

};
})
$('.operation').each(function(){
var current = this;
this.onclick = function(event){
var value = event.target.id;
forOperation(value) // Почему значение undefined+value?
$('#result').text(stack.result);

};
})
$('#enter').each(function(){
var current = this;
this.onclick = function(event){
forResult() // Почему значение undefined+value?
$('#result').text(stack['result']);
};
})
2 changes: 2 additions & 0 deletions jquery-1.8.2.min.js
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