Traversing/API/jQuery - Sample Code
slice(start, [end])
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="/jquery/js/jquery.js"></script>
<script>
$(document).ready(function(){
function colorEm() {
var $div = $("div");
var start = Math.floor(Math.random() *
$div.length);
var end = Math.floor(Math.random() *
($div.length - start)) +
start + 1;
if (end == $div.length) end = undefined;
$div.css("background", "");
if (end)
$div.slice(start, end).css("background", "yellow");
else
$div.slice(start).css("background", "yellow");
$("span").text('$("div").slice(' + start +
(end ? ', ' + end : '') +
').css("background", "yellow");');
}
$("button").click(colorEm);
});
</script>
<style>
div { width:40px; height:40px; margin:10px; float:left;
border:2px solid blue; }
span { color:red; font-weight:bold; }
button { margin:5px; }
</style>
</head>
<body>
<button>Turn slice yellow</button>
<span>Click the button!</span>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</body>
</html>
[実行結果]