te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - jquery: onclick change background color - Stack Overflow

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    javascript - jquery: onclick change background color - Stack Overflow

    programmeradmin3浏览0评论

    I have following UL - LI html.

    <UL>
<LI><span id='select1'>Text</span></LI>
<LI><span id='select2'>Text</span></LI>
<LI><span id='select3'>Text</span></LI>
<LI><span id='select4'>Text</span></LI>
<LI><span id='select5'>Text</span></LI>
<LI><span id='select6'>Text</span></LI>
</UL>

    If I click on specific <span>, its background color should be changed. i.e. if I click on span having id='select3', its background-color should be changed.

    How this can be done using jQuery?

    I have following UL - LI html.

    <UL>
<LI><span id='select1'>Text</span></LI>
<LI><span id='select2'>Text</span></LI>
<LI><span id='select3'>Text</span></LI>
<LI><span id='select4'>Text</span></LI>
<LI><span id='select5'>Text</span></LI>
<LI><span id='select6'>Text</span></LI>
</UL>

    If I click on specific <span>, its background color should be changed. i.e. if I click on span having id='select3', its background-color should be changed.

    How this can be done using jQuery?

    • javascript
    • jquery
    • css
    Share Improve this question edited Feb 24, 2011 at 11:02 Felix Kling 817k180 gold badges1.1k silver badges1.2k bronze badges asked Feb 24, 2011 at 10:59 gautamlakumgautamlakum 12k23 gold badges69 silver badges90 bronze badges 1
    • 1 Attach a click handler to the spans in which you change the background color. What exactly do you need to know? What have you tried? – Felix Kling Commented Feb 24, 2011 at 11:02
    Add a ment  | 

    4 Answers 4

    Reset to default 8

    Try this one :

    $('li span[id^="select"]').click(function(){
   $(this).css('background-color',"#ccc")
})

    what it does is, clicking the span inside li having id starting with 'select' changes the backgound color.

    You can use the following

    jQuery("#select1").click(function(){jQuery(this).css({'background-color':'red})});

    Hope it helps.

    Update my answer to put handler on each select. You can add some attr to your span elements to represent color. e.g. <span rel="red">Text</span>. And then you can write handler like

    jQuery("ul span[id^='select']").click(function(){jQuery(this).css({'background-color':jQuery(this).attr('rel')})});

    Try 

    $("span").click(function(){
  if($(this).attr('id') == "select3") $(this).css('background-color', 'red');
});

    If you have many list elements, you may want to use event delegation and only manage a click on the ul. So you can do

    $('ul').click(function(event) {
    switch($(event.target).attr('id')) {
        case select1:
            $(event.target).css('background-color', 'red');
            break;
        //More case statements
    }
});

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