> For the complete documentation index, see [llms.txt](https://westsilver.gitbook.io/study-script/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://westsilver.gitbook.io/study-script/javascript/web-browser/untitled/element/api-1.md).

# 조회 API

<figure><img src="https://3193435092-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Miu1tqKdNPM-BV0usUx%2Fuploads%2FR7c3OIsss37IuzJdfqoN%2Fimage.png?alt=media&amp;token=1ca71310-edd2-4de9-b7ac-82db7040bfa7" alt=""><figcaption></figcaption></figure>

```html
<ul>
    <li class="marked">html</li>
    <li>css</li>
    <li id="active">JavaScript
        <ul>
            <li>JavaScript Core</li>
            <li class="marked">DOM</li>
            <li class="marked">BOM</li>
        </ul>
    </li>
</ul>
<script>
    let list = document.getElementsByClassName('marked');
    console.group('document');
    for(let i=0; i<list.length; i++){
        console.log(list[i].textContent);
    }
    console.groupEnd();
     
    console.group('active');
    let active = document.getElementById('active');     
    let list = active.getElementsByClassName('marked');
    for(let i=0; i<list.length; i++){
        console.log(list[i].textContent);
    }
    console.groupEnd();
</script>
```