点击运行
<!DOCTYPE html> <html> <head> <script type="text/javascript" src="/static/jquery/jquery.min.js"></script> </head> <body> <p>结果：</p> <script> $(function(){ var $p = jQuery("p"), p = $p[0]; $p.append(jQuery.hasData(p)+" "); /* false */ jQuery.data(p, "testing", 123); $p.append(jQuery.hasData(p)+" "); /* true*/ jQuery.removeData(p, "testing"); $p.append(jQuery.hasData(p)+" "); /* false */ }); </script> </body> </html>
运行结果
