<!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></title>
</head>
<body>
<h1>Conditional statements</h1>
<h2>Program</h2>
<script>
document.write('1<br/>');
document.write('2<br/>');
document.write('3<br/>');
document.write('4<br/>');
</script>
<h2>IF-true</h2>
<script>
document.write('1<br/>');
if(true) {
document.write('2<br/>'); // 조건이 true면 실행
} else {
document.write('3<br/>');// 조건이 false면 실행
}
document.write('4<br/>');
</script>
<h2>IF-false</h2>
<script>
document.write('1<br/>');
if(false) {
document.write('2<br/>');
} else {
document.write('3<br/>');
}
document.write('4<br/>');
</script>
</body>
</html>