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waitForSelector and querySelectorAll with puppeteer

IT培训 admin 12浏览 0评论

waitForSelector and querySelectorAll with puppeteer

我是使用node.js的完全新手,正在尝试实现这种自动化。我有这些数据要与伪娘一起抓取,只需要捕捉分数(85)并显示在控制台日志中。

<tr>
                                    <td class="text-right">
                                        Delivery Confidence Score <br>
                                        <span style="font-weight:normal;font-style:italic;font-size:12px">* the probability [0-100]% of an email making it into the mailbox of the recipient.</span>
                                    </td>
                                    <td class="text-left bold-text">
                                        <span> 85<br><span class="green-text" style="font-weight:normal">Send mail. There is a high chance of email delivery success.</span> </span> &nbsp;&nbsp;

                                    </td>
                                </tr>

因此,所有打开的URL,登录并通过提交后,我要废弃此代码:

await page.waitForSelector("td.text-left bold-text");
  var MyList = await page.evaluate(() => {
    var NodeList = document.querySelectorAll(`td.text-left bold-text`);
    var scoreList = document.querySelectorAll(`span`);
    var MyArray = [];

    for (var i = 0; i < NodeList.length; i++) {
      MyArray[i] = {
      score: scoreList[i].innerText.trim(),
      };
    }
    return MyArray;
  });

希望你们能帮上忙。谢谢

回答如下:

尝试一下。

waitForSelector and querySelectorAll with puppeteer

我是使用node.js的完全新手,正在尝试实现这种自动化。我有这些数据要与伪娘一起抓取,只需要捕捉分数(85)并显示在控制台日志中。

<tr>
                                    <td class="text-right">
                                        Delivery Confidence Score <br>
                                        <span style="font-weight:normal;font-style:italic;font-size:12px">* the probability [0-100]% of an email making it into the mailbox of the recipient.</span>
                                    </td>
                                    <td class="text-left bold-text">
                                        <span> 85<br><span class="green-text" style="font-weight:normal">Send mail. There is a high chance of email delivery success.</span> </span> &nbsp;&nbsp;

                                    </td>
                                </tr>

因此,所有打开的URL,登录并通过提交后,我要废弃此代码:

await page.waitForSelector("td.text-left bold-text");
  var MyList = await page.evaluate(() => {
    var NodeList = document.querySelectorAll(`td.text-left bold-text`);
    var scoreList = document.querySelectorAll(`span`);
    var MyArray = [];

    for (var i = 0; i < NodeList.length; i++) {
      MyArray[i] = {
      score: scoreList[i].innerText.trim(),
      };
    }
    return MyArray;
  });

希望你们能帮上忙。谢谢

回答如下:

尝试一下。

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