如何在javascript中使用cheerio获取子属性值

我正在使用cheerio库进行数据抓取。我正在尝试使用下面的方法获取标签的值

var sparkLine = $(this)
  .find("td")
  .eq(7).text;

HTML

HTML

-4.85%

将此代码应用于问题的两个TD标签：

    $('td', htmlCode)
        .each(function (counter, elem) {
            console.log(`#${counter}`);
            console.log($(this).html());
        });

<td>
   <a href="/currencies/bitcoin/#charts">
     <img class="sparkline"
          alt="sparkline" 
          src="https://files.coinmarketcap.com/generated/sparklines/1.png">
   </a>
</td>

// Returns:
#0
<a href="/currencies/bitcoin/#charts">
  <img class="sparkline"
         alt="sparkline" 
         src="https://files.coinmarketcap.com/generated/sparklines/1.png">
</a>

第一个标签：

    $('td', htmlCode)
        .each(function (counter, elem) {
            console.log(`#${counter}`);
            console.log($(this).html());
        });

<td>
   <a href="/currencies/bitcoin/#charts">
     <img class="sparkline"
          alt="sparkline" 
          src="https://files.coinmarketcap.com/generated/sparklines/1.png">
   </a>
</td>

// Returns:
#0
<a href="/currencies/bitcoin/#charts">
  <img class="sparkline"
         alt="sparkline" 
         src="https://files.coinmarketcap.com/generated/sparklines/1.png">
</a>

//返回：
#0

**二,。第二个标签：**

<td class="no-wrap percent-24h negative_change text-right"
    data-usd="-4.85"
    data-btc="0.00" >
    -4.85%
</td>

// Returns:
#0
-4.85%

-4.85%
//返回：
#0
-4.85%

将此代码应用于问题的两个TD标签：

    $('td', htmlCode)
        .each(function (counter, elem) {
            console.log(`#${counter}`);
            console.log($(this).html());
        });

<td>
   <a href="/currencies/bitcoin/#charts">
     <img class="sparkline"
          alt="sparkline" 
          src="https://files.coinmarketcap.com/generated/sparklines/1.png">
   </a>
</td>

// Returns:
#0
<a href="/currencies/bitcoin/#charts">
  <img class="sparkline"
         alt="sparkline" 
         src="https://files.coinmarketcap.com/generated/sparklines/1.png">
</a>

第一个标签：

    $('td', htmlCode)
        .each(function (counter, elem) {
            console.log(`#${counter}`);
            console.log($(this).html());
        });

<td>
   <a href="/currencies/bitcoin/#charts">
     <img class="sparkline"
          alt="sparkline" 
          src="https://files.coinmarketcap.com/generated/sparklines/1.png">
   </a>
</td>

// Returns:
#0
<a href="/currencies/bitcoin/#charts">
  <img class="sparkline"
         alt="sparkline" 
         src="https://files.coinmarketcap.com/generated/sparklines/1.png">
</a>

//返回：
#0

**二,。第二个标签：**

<td class="no-wrap percent-24h negative_change text-right"
    data-usd="-4.85"
    data-btc="0.00" >
    -4.85%
</td>

// Returns:
#0
-4.85%

-4.85%
//返回：
#0
-4.85%