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getElementsByClassName() | Document - JavaScript リファレンス
getElementsByClassName() - 1 - JavaScriptのgetElementsByClassName()のサンプルです。
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>getElementsByClassName()</title> </head> <body> <div class="myClass class01">myClass01</div> <div class="myClass class02">myClass02</div> <div class="myClass class03">myClass03</div> <script> var classes = document.getElementsByClassName("myClass"); console.log( classes );//[div.myClass.class01, div.myClass.class02, div.myClass.class03] </script> </body> </html>
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getElementsByClassName()
JavaScript
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