我正在根据标题结构以有序列表的样式制作目录,这样:
I'm making a table of contents, in the style of an ordered list, based on the header structure, such that:
<h1>lorem</h1>
<h2>ipsum</h2>
<h2>dolor</h2>
<h3>sit</h3>
<h2>amet</h2>
变成:
这就是我目前的做法:
$('h1, h2, h3, h4, h5, h6').each ()->
# get depth from tag name
depth = +@nodeName[1]
$el = $("<li>").text($(this).text())
do get_recursive_depth = ()->
if depth is current_depth
$list.append $el
else if depth > current_depth
$list.append( $("<ol>") ) unless $list.children().last().is('ol')
$list = $list.children().last()
current_depth += 1
get_recursive_depth()
else if depth < current_depth
$list = $list.parent()
current_depth -=1
get_recursive_depth()
哪个有效,但它似乎缺乏优雅.有没有更智能/更快/更健壮的方法来做到这一点?
which works, but it seems like it lacks elegance. Is there a smarter / faster / more robust way to do this?
jQuery 实现:
var $el, $list, $parent, last_depth;
$list = $('ol.result');
$parent = [];
$parent[1] = $list;
last_depth = 1;
$el = 0;
$('h1, h2, h3, h4, h5, h6').each(function () {
var depth;
depth = +this.nodeName[1];
if (depth > last_depth) {
$parent[depth] = $('<ol>').appendTo($el);
}
$el = $("<li>").text($(this).text());
$parent[depth].append($el);
return last_depth = depth;
});
也许有人会派上用场))
Maybe someone will come in handy))
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