HOW CAN I USE JAVASCRIPT CODE THAT I PUT IT IN BELOW CODE IN HTML CODE
i HAVE THIS CODE FOR HTML:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<link href="Styles/Site.css" rel="Stylesheet" type="text/css" />
<script src="menu.js" type="text/javascript"></script>
</head>
<body önclick="Click()">
<div id="calculator">
<div>
Make Calculator with CSS3 and Java script By Omid dehaghin
</div>
<!--
<div class="top">
<span class="clear">پاک کردن</span>
<div class="screen">
</div>
</div>
<div class="keys">
<!--
<span>7</span> <span>8</span> <span>9</span> <span class="operator">+</span> <span>4</span>
<span>5</span> <span>6</span> <span class="operator">-</span> <span>1</span> <span>2</span>
<span>3</span> <span class="operator">÷</span> <span>0</span> <span>.</span> <span>
class="eval">=</span> <span class="operator">x</span>
</div>
</div>
</body>
</html>
AND THIS CODE FOR JAVA SCRIPT:
var keys = document.querySelectorAll('#calculator span');
var operators = ['+', '-', 'x', '÷'];
var decimalAdded = false;
function Click() {
for (var i = 0; i < keys.length; i++) {
keys[i]. önclick = function (e) {
var input = document.querySelector('.screen');
var inputVal = input.innerHTML;
var btnVal = this.innerHTML;
if (btnVal == 'C') {
input.innerHTML = '';
decimalAdded = false;
}
else if (btnVal == '=') {
var equation = inputVal;
var lastChar = equation[equation.length - 1];
equation = equation.replace(/x/g, '*').replace(/÷/g, '/');
if (operators.indexOf(lastChar) > -1 || lastChar == '.')
equation = equation.replace(/.$/, '');
if (equation)
input.innerHTML = eval(equation);
decimalAdded = false;
}
else if (operators.indexOf(btnVal) > -1) {
var lastChar = inputVal[inputVal.length - 1];
if (inputVal != '' && operators.indexOf(lastChar) == -1)
input.innerHTML += btnVal;
else if (inputVal == '' && btnVal == '-')
input.innerHTML += btnVal;
if (operators.indexOf(lastChar) > -1 && inputVal.length > 1) {
input.innerHTML = inputVal.replace(/.$/, btnVal);
}
decimalAdded = false;
}
else if (btnVal == '.') {
if (!decimalAdded) {
input.innerHTML += btnVal;
decimalAdded = true;
}
}
else {
input.innerHTML += btnVal;
}
e.preventDefault();
}
}
}
AND FOR CSS3 I HAVE THIS CODE:
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font: bold 14px Arial, sans-serif;
}
html {
height: 100%;
background: white;
background: radial-gradient(circle, #fff 20%, #ccc);
background-size: cover;
}
#calculator {
width: 325px;
height: auto;
margin: 100px auto;
padding: 20px 20px 9px;
background: #000000;
background: linear-gradient(#9dd2ea, #8bceec);
border-radius: 3px;
box-shadow: 0px 4px #009de4, 0px 10px 15px rgba(0, 0, 0, 0.2);
}
.top span.clear {
float: left;
}
.top .screen {
height: 40px;
width: 212px;
float: right;
padding: 0 10px;
background: rgba(0, 0, 0, 0.2);
border-radius: 3px;
box-shadow: inset 0px 4px rgba(0, 0, 0, 0.2);
font-size: 17px;
line-height: 40px;
color: white;
text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
text-align: right;
letter-spacing: 1px;
}
.keys, .top {overflow: hidden;}
.keys span, .top span.clear {
float: left;
position: relative;
top: 0;
cursor: pointer;
width: 66px;
height: 36px;
background: white;
border-radius: 3px;
box-shadow: 0px 4px rgba(0, 0, 0, 0.2);
margin: 0 7px 11px 0;
color: #888;
line-height: 36px;
text-align: center;
user-select: none;
transition: all 0.2s ease;
}
.keys span.operator {
background: #FFF0F5;
margin-right: 0;
}
.keys span.eval {
background: #f1ff92;
box-shadow: 0px 4px #9da853;
color: #888e5f;
}
.top span.clear {
background: #ff9fa8;
box-shadow: 0px 4px #ff7c87;
color: white;
}
.keys span:hover {
background: #9c89f6;
box-shadow: 0px 4px #6b54d3;
color: white;
}
.keys span.eval:hover {
background: #abb850;
box-shadow: 0px 4px #717a33;
color: #ffffff;
}
.top span.clear:hover {
background: #f68991;
box-shadow: 0px 4px #d3545d;
color: white;
}
.keys span:active {
box-shadow: 0px 0px #6b54d3;
top: 4px;
}
.keys span.eval:active {
box-shadow: 0px 0px #717a33;
top: 4px;
}
.top span.clear:active {
top: 4px;
box-shadow: 0px 0px #d3545d;
}