本代码来自Coursera的Angular课程,欢迎大家去参加课程.我节选出精华的片段,写到自己博客上.
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>HTML5 Custom Attributes</title> </head> <body> <h1>HTML5 Custom Attributes</h1> <div id="target" ng-app="myTestApp"> <section>Section 1 <article>Article 1</article> </section> </div> <script> // var elem = document.getElementById('target'); // console.log(elem); // // console.log(elem.getAttribute('ng-app')); var elem2 = document.querySelector("[ng-app]"); console.log(elem2); console.log(elem2.getAttribute('ng-app')); </script> </body> </html>
自定义的attribute,html解释器在解释时会自动忽略,因此不会破坏html的运行.
Javascript自带了访问自定义attribute的函数,document.getAttribute(),这可以得到该attribute的值.
此外,还可以通过document.querySelector("[name]")获得有该attribute的dom树的分支.