Question

我有一个包含一些HTML的字符串。实施例...

<tr id="problem_header">
  <td width="50%">Unit 5, Lesson 2: Ordering Decimals</td>
  <td width="50%">Notes</span></td>
</tr>
<tr id="border_row">
  <td class="border_cell" id="border_cell">----</td>
  <td class="border_cell" id="border_cell">----</td>
</tr>

<tr class="problem_display_row">
  <td valign="middle" class="problem_display" id="problem_display">
    Place the following numbers in order from least to greatest. 
    <br><br>
    0.0032, &nbsp;0.0016, &nbsp;0.0097, &nbsp;0.0075, &nbsp;0.0049
  </td>
  <td valign="middle" class="notes_display" id="notes_display">
  </td>
</tr>

<tr class="problem_display_work">
  <td valign="middle" class="problem_display" id="problem_display">
    <span class="emphasis">0.0016, &nbsp;0.0032, &nbsp;0.0049, &nbsp;0.0075, &nbsp;0.0097</span>
  </td>
  <td valign="middle" class="notes_display" id="notes_display">
  Starting with the highest place value, compare each corresponding place value on each number.  Highest number wins!  If there's a tie, move on to the next place value and keep going until you have a winner.
  </td>

使用javascript，我可以通过他们的ID取出一些<tr>吗？比如，摆脱<tr id="problem_header">例如，但留下另一个<tr>＆＃39; s

Answer 1

var element = document.getElementById("problem_header");
element.parentNode.removeChild(element);

Answer 2

以字符串格式执行此操作会很困难（可能是正则表达式，但真的很难），但jquery可以处理这个......

var x = $(YOURSTRING)
//remove values from x with regular jquery calls
return x.html()

Answer 3

因为HTML是字符串格式，我想最好先执行它，即显示所有tr和id="problem_header"，一旦加载tr，删除{{1} }}

您可以将ID删除为

id="problem_header"

确保在编写脚本以显示所有tr元素后执行上述脚本。

使用Javascript从String中删除特定HTML标记

3 个答案: