getElementsByTagName

유석현(SeokHyun Yu)·2022년 11월 16일
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JavaScript

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document</title>
    </head>
    <body>
        <ol>
            <li>test 1</li>
            <li>test 2</li>
            <li>test 3</li>
        </ol>
        <ul>
            <li>HTML</li>
            <li>CSS</li>
            <li>JavaScript</li>
        </ul>
        <script>
            const li = document.getElementsByTagName("li");

            for (let i = 0; i < li.length; i++) {
                li[i].style.color = "red";
            }
        </script>

        <hr/>
          
        <ol>
            <li>test 1</li>
            <li>test 2</li>
            <li>test 3</li>
        </ol>
        <ul>
            <li>HTML</li>
            <li>CSS</li>
            <li>JavaScript</li>
        </ul>
        <script>
            const ul = document.getElementsByTagName("ul")[1];
            const li2 = ul.getElementsByTagName("li");

            for (let i = 0; i < li2.length; i++) {
                li2[i].style.color = "red";
            }
        </script>
    </body>
</html>

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