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Closed 11 years ago.

我曾尝试过使用

$( meta[name=description] ).attr( content ,  new value );

但是,以上所述并非在任何浏览器中工作。

请建议

Answer 1

种子对我课以罚款。

$(function () { // dom ready
    var $meta = $( meta[name=description] ).attr( content ,  hi );
    $( body ).text($meta.attr( content ));
});

http://jsfiddle.net/F7GbX/

也许你无法检查一下dom是否准备好了。因此,有 met。

When an html page is rendered, all the tags you write such as <meta> might be loaded AFTER your javascript is ready. Therefore, you must run your code inside the domready call so that the code isn t run until all the tags in the page have been loaded.

Under the hood of jQuery - this method uses DOMContentLoaded. https://developer.mozilla.org/en/DOM/DOM_event_reference/DOMContentLoaded

Answer 2

jQuery(document).ready(function($) { 
    $( meta[name=description] ).attr( content ,  new value );
})

友情链接