jQuery获取< li>的ID/值点击功能后的元素 [英] jQuery get the id/value of <li> element after click function

问题描述

如何提醒点击的<li>项目的ID?

How can I alert the id of the <li> item clicked?

<ul id='myid'>
  <li id='1'>First</li>
  <li id='2'>Second</li>
  <li id='3'>Third</li>
  <li id='4'>Fourth</li>
  <li id='5'>Fifth</li>
</ul>

(任何可以替换id的东西可能都是值，或者其他也可以使用的东西.)

(Anything that can replace the id may be value or something else will also work.)

推荐答案

$("#myid li").click(function() {
    alert(this.id); // id of clicked li by directly accessing DOMElement property
    alert($(this).attr('id')); // jQuery's .attr() method, same but more verbose
    alert($(this).html()); // gets innerHTML of clicked li
    alert($(this).text()); // gets text contents of clicked li
});

如果您要使用以下内容替换ID:

If you are talking about replacing the ID with something:

$("#myid li").click(function() {
    this.id = 'newId';

    // longer method using .attr()
    $(this).attr('id', 'newId');
});

此处的演示.为了公平起见，您应该首先尝试阅读文档:

Demo here. And to be fair, you should have first tried reading the documentation:

• http://api.jquery.com/category/selectors/
• http://api.jquery.com/category/events/
• http://api.jquery.com/attr/

• http://api.jquery.com/category/selectors/
• http://api.jquery.com/category/events/
• http://api.jquery.com/attr/

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