<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>while문</title>
<script>
var i = 1;
while (i <= 10) {
document.write("안녕하세요" + i, "<br>");
i++; //i = i+1;
}
document.write("==== The End ==== <br>");
var i = 1; //재할당o, 재선언x
while (i <= 30) {
if (i % 2 == 0 && i % 6 == 0) {
document.write(i, "<br>");
}
i++;
}
document.write("==== The End ==== <br>");
</script>
</head>
<body></body>
</html>
while if ~ else
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>while문</title>
<style>
* {margin: 0;}
.blue {color: #00f;}
.red {color: #f00;}
</style>
</head>
<body>
<script>
var i = 20;
while (i >= 10) {
if (i % 2 == 0) {
document.write('<span class="blue">' + i + "</span> ");
} else {
document.write('<span class="red">' + i + "</span> ");
}
i--;
}
</script>
</body>
</html>
do~while
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>반복문</title>
</head>
<body>
<h1>do/while문</h1>
<script>
var i = 10;
do {
document.write("hello!!");
} while (i < 3);
var i = 1,
j = 1;
while (i < 3) {
document.write("i : " + i++ + "<br>"); //1(2)->2(3)
}
do {
document.write("j : " + j++ + "<br>"); //1(2)
} while (j > 3);
</script>
</body>
</html>
