本文介绍了如何使用Javascript标记从HTML标记中提取URL参数?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是一个字符串,我想提取& key = f430a2c1之后的所有内容,直到&
Here is a string I want to extract everything after &key=f430a2c1 until &
有没有办法访问这些数据,然后提取密钥?
Is there a way to access this data, then extract the key?
<img src="img/index.php?key=f430a2c1&rand=736920" alt=
这个字符串存在于文档中,我可能需要一些函数来从src =区域获取它。 / b>
This string exists within the document, and I may need some function to grab it from the src="" area.
推荐答案
我猜你想要什么,但也许是这样?
I am guessing as to what you want, but maybe this?
var images = document.getElementsByTagName("img"),
wanted;
if (images.length) {
wanted = images[0].src;
if (wanted) {
wanted = wanted.split("?");
if (wanted.length >= 2 && wanted[1].indexOf("&") !== -1) {
wanted = wanted[1].split("&")[0];
}
}
}
if (typeof wanted !== "string") {
wanted = "";
}
console.log(wanted);
输出
key=f430a2c1
在
这篇关于如何使用Javascript标记从HTML标记中提取URL参数?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!