토이프로젝트
계산기 만들기.
이경찬 :)
2022. 12. 22. 15:00
첫 계산기 만들기 프로젝트를 진행 하였습니다.
HTML + CSS 그리고 Javascript로 간단한 계산기를 구현하였습니다.
하나하나 감을 잡는다고 생각하고 익숙해질때까지 해보는게 중요할 것 같습니다.
코드
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="test.css">
</head>
<body>
<div class="calculator">
<form name="forms">
<input type="text" name="output" readonly>
<input type="button" class='clear' value="C" onclick="document.forms.output.value =''">
<input type="button" class='operator' value="/" onclick="document.forms.output.value +='/'">
<input type="button" value="1" onclick="document.forms.output.value +='1'">
<input type="button" value="2" onclick="document.forms.output.value +='2'">
<input type="button" value="3" onclick="document.forms.output.value +='3'">
<input type="button" class='operator' value="*" onclick="document.forms.output.value +='*'">
<input type="button" value="4" onclick="document.forms.output.value +='4'">
<input type="button" value="5" onclick="document.forms.output.value +='5'">
<input type="button" value="6" onclick="document.forms.output.value +='6'">
<input type="button" class='operator' value="+" onclick="document.forms.output.value +='+'">
<input type="button" value="7" onclick="document.forms.output.value +='7'">
<input type="button" value="8" onclick="document.forms.output.value +='8'">
<input type="button" value="9" onclick="document.forms.output.value +='9'">
<input type="button" class='operator' value="-" onclick="document.forms.output.value +='-'">
<input type="button" class='dot' value="." onclick="document.forms.output.value +='.'">
<input type="button" value="0" onclick="document.forms.output.value +='0'">
<input type="button" class='operator result' value="=" onclick="document.forms.output.value =eval(document.forms.output.value)">
</form>
</div>
</body>
</html>
CSS:
*{
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color : #1f1f1f;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
}
.calculator{
width: 287px;
border: 1px solid #333;
background-color: #ccc;
padding: 5px;
}
.calculator form{
display: grid;
grid-template-columns: repeat(4,65px);
grid-auto-rows: 65px;
grid-gap: 5px;
}
.calculator form input {
border: 2px solid #333;
cursor: pointer;
font-size: 19px;
}
.calculator form input:hover{
box-shadow: 1px 1px 2px #333;
}
.calculator form .clear{
background-color: #ed4848;
}
.calculator form .operator{
background-color:orange;
}
.calculator form .dot{
background-color: green;
}
.calculator form input[type = 'text']{
grid-column: span 4;
text-align: right;
padding: 0 10px;
}
.calculator form .clear{
grid-column: span 3;
}
.calculator form .result{
grid-column:span 2;
}
