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 - JS - how to get content of internal style element (<style>...<style) - Stack Overflow
最新消息:雨落星辰是一个专注网站SEO优化、网站SEO诊断、搜索引擎研究、网络营销推广、网站策划运营及站长类的自媒体原创博客

javascript - JS - how to get content of internal style element (<style>...<style) - Stack Overflow

programmeradmin3浏览0评论

by internal style I mean

<style>
#div
{color:red;}
</style>

document.getElementsByTagName('style').innerHTML is not working... document.styleSheets either.

by internal style I mean

<style>
#div
{color:red;}
</style>

document.getElementsByTagName('style').innerHTML is not working... document.styleSheets either.

Share Improve this question asked Feb 27, 2017 at 14:44 webmasternewbiewebmasternewbie 1671 gold badge2 silver badges16 bronze badges 1
  • is this like <div class="somethig>any internal element</div> ? – hardik Commented Feb 27, 2017 at 14:49
Add a ment  | 

5 Answers 5

Reset to default 10

document.getElementsByTagName returns Array of Elements

so you need to access it with index

document.getElementsByTagName('style')[0].innerHTML

document.styleSheets is much useful if you want to get specific selector or modify something from style sheet

Example

var styleSheet = document.styleSheets[1]; 
// assuming second one is embedded style, 
// since document.styleSheets also shows linked style sheets (like <link heref=".. >)

for (var i = 0; i < styleSheet.rules.length; i++) {
    // if you are looking for selector '.main'
    if (styleSheet.rules[i].selectorText === '.main') {
        // get background color
        var oldBg = styleSheet.rules[i].style.backgroundColor;

        // set background color
        styleSheet.rules[i].style.backgroundColor = '#ddd';
    }    
}

document.styleSheets is an array , for each of the style definition in your page . Iterate for each of the style elements and find the rules defined.

document.styleSheets[0].rules

This is again an array. so iterate . The rule text for each of the rules can be extracted as follows

document.styleSheets[indexofstyleelement].rules[indexofrule].cssText

document.styleSheets[0].rules[0].cssText gives rule text for first of the rules defined inside first style element

<!DOCTYPE html>
<html>
<head>
<style>
  #div {
    color: red;
  }
</style>
</head>

<body>

<button onclick="myFunction()">Try it</button>

<p id="demo"></p>

<script>
  function myFunction() {
    var x = document.getElementsByTagName("STYLE")[1];
    document.getElementById("demo").innerHTML = x.innerHTML;
  }
</script>

</body>
</html>

https://jsfiddle/mediaguru/xt9mkncx/

using jquery use this

var x = $('style').html();

using javascript

var x=document.getElementById("home");

var y = x.firstChild.innerHTML;

Ahh I'm so stupid..

for (var i = 0; i < styles_length; i++)
{// I had:
// styles.innerHTML;
// not correct:
styles[i].innerHTML;
}

All answers by @Jag, @ABHIJITH GM, @mediaguru, @hardik are correct.

Thank you guys! And sorry for this newbie question... all day codding, my eyes are hurting, coffee time.

发布评论

评论列表(0)

  1. 暂无评论