如何使用javascript / css更改href属性的值? [英] how can the value of an href attribute be changed using javascript/css?
问题描述
假设html包含以下结构:
Assuming that the html contains the following structure:
<div>
<a href="http://the/link/that/needs/to/be/changed">text</a>
</div>
<div>
<div>
//<script> or <style> must go here
</div>
</div>
...,并假定对最终HTML文件的贡献只能插入到指定的位置,并假定 a元素的标记不能以任何方式修改,是否可以添加JavaScript或CSS代码来更改前 a元素的href属性所引用的url?如果是这样,怎么办?
...and assuming that the 'contribution' to the final HTML file can be inserted ONLY at the specified location, and assuming that the markup for the "a" element cannot be modified in any way, is it possible to add javascript or css code that will change the url that the href attribute of the previous "a" element refers to? If so, how?
推荐答案
您可以在没有id的情况下进行操作:
You could do it without id:
document.querySelector("a[href^='http://the']")
并设置href属性:
document.querySelector("a[href^='http://the']").href=whatever
的任何内容(浏览器-兼容性)的 querySelector
参见 MDN条
For a full reference (browser-compatibility) of querySelector
see the MDN-Article
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