如何从以下内容生成嵌套的有序列表?我已经搜索了论坛并且现在工作了几个小时,以便根据源内容中的不同类生成有序列表。该内容最多可以有6层嵌套 级别。 我需要的是根据不同的类生成有序列表。如示例内容所示,以获得类似于下面概述的示例内容的内容。JavaScript:如何生成嵌套的有序列表
.firstclass => 1.
.secondclass => 1.
.thirdclass => 1.
.fourthclass => 1.
代码:
var cheerio = require('cheerio');
var $ = cheerio.load('<h1 class="header">First Header</h1><p class="firstclass">First Lorem ipsum dolor sit.</p><p class="firstclass">First Qui consequatur labore at.</p><p class="secondclass">Second Lorem ipsum dolor sit amet.</p> <p class="thirdclass">Third Lorem ipsum dolor sit amet.</p><p class="thirdclass">Third Molestias optio quasi ipsam unde!</p><p class="secondclass">Second Lorem ipsum dolor sit amet, consectetur.</p><p class="fourthclass">Fourth Lorem ipsum dolor sit.</p><p class="firstclass">First Lorem ipsum dolor sit amet.</p>', {
normalizeWhitespace: true,
xmlMode: true,
decodeEntities: false,
});
var myContent = $('p').each(function() {
var para = $(this).text();
return para;
});
var olClass = ['.firstclass', '.secondclass', '.thirdclass', '.fourthclass'];
function arrToOl(arr) {
var ol = $('<ol />'),
li = $('<li />');
for (var i = 0; i < arr.length; i++) {
if (Array.isArray(arr[i])) {
li.append(arrToOl(arr[i]));
} else {
li = $('<li />');
li.append($(arr[i]));
ol.append(li);
}
}
return $.html(ol);
}
console.dir(arrToOl(olClass));
上面的代码产生以下:
'<ol><li><p class="firstclass">First Lorem ipsum dolor sit.</p><p class="firstclass">First Qui consequatur labore at.</p><p class="firstclass">First Lorem ipsum dolor sit amet.</p></li><li><p class="secondclass">Second Lorem ipsum dolor sit amet.</p><p class="secondclass">Second Lorem ipsum dolor sit amet, consectetur.</p></li><li><p class="thirdclass">Third Lorem ipsum dolor sit amet.</p><p class="thirdclass">Third Molestias optio quasi ipsam unde!</p></li><li><p class="fourthclass">Fourth Lorem ipsum dolor sit.</p></li></ol>'
期望的结果应该是:
<ol>
<li>
<p class="firstclass">First Lorem ipsum dolor sit.</p>
</li>
<li>
<p class="firstclass">First Qui consequatur labore at.</p>
</li>
<li>
<p class="firstclass">First Lorem ipsum dolor sit amet.</p>
<ol>
<li>
<p class="secondclass">Second Lorem ipsum dolor sit amet.</p>
</li>
<li>
<p class="secondclass">Second Lorem ipsum dolor sit amet, consectetur.</p>
<ol>
<li>
<p class="thirdclass">Third Lorem ipsum dolor sit amet.</p>
</li>
<li>
<p class="thirdclass">Third Molestias optio quasi ipsam unde!</p>
<ol>
<li>
<p class="fourthclass">Fourth Lorem ipsum dolor sit.</p>
</li>
</ol>
</li>
</ol>
</li>
</ol>
</li>
</ol>
你的帮助是非常赞赏。
为了帮助我们,也许你自己在可读代码中,你可以使用'\''(反引号)代替引号以便有多行代码 –