<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>JavaScript function</title>
<style>
body {
font-family : Consolas;
}
</style>
</head>
<body>
<script>
var a = '111';
var b = '222';
var k = 'AAA';
var c = a + b;
var d = Number( a ) + Number( b );
var k1 = a + b + k;
var k2 = Number( a ) + Number( b ) + Number( k );
document.write( '<h1>c : ' + c + '</h1>');
document.write( '<h1>d : ' + d + '</h1>');
document.write( '<h1>k1 : ' + k1 + '</h1>');
document.write( '<h1>k2 : ' + k2 + '</h1>');
</script>
</body>
</html>
꾸준함의 가치를 믿는 개발자