JavaScript DOM操作之数据集属性
<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>三十课 - JavaScript DOM操作之数据集属性</title> <script src="http://res.30ke.cn/res/js/console.js"></script> </head> <body> <img id="img" data-x="100" src="http://res.30ke.cn/res/image/30ke.png" width="200px" /> <div id="main"></div> <script> var img = document.querySelector("#img"); var x = img.dataset.x; console.log(x); </script> </body> </html>
运行结果
三十课
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