Javascript 获取 url 路径的第一部分

Question

提问by Cameron

If I have a url like:

如果我有一个像这样的网址：

I want to alert the first part of the url path in lowercase format e.g. 'organisations'

我想以小写格式提醒 url 路径的第一部分，例如“组织”

So far I have:

到目前为止，我有：

var first = $(location).attr('pathname');

first.indexOf(1);

first.replace('/', '');

first.toLowerCase();

alert(first);

but it's not working as intended. Can anyone help? Thanks

但它没有按预期工作。任何人都可以帮忙吗？谢谢

Answer 1

var first = $(location).attr('pathname');

first.indexOf(1);

first.toLowerCase();

first = first.split("/")[1];

alert(first);

Answer 2

This will never throw an error because pathname always starts with a /, so the minimum length of the resulting array will be 2 after splitting:

这永远不会抛出错误，因为路径名总是以 a 开头/，因此拆分后结果数组的最小长度将为 2：

const firstPath = window.location.pathname.split('/')[1];

If we are at the domain root, the returned value will be an empty string "".

如果我们在域根，返回的值将是一个空字符串""。

Answer 3

try to use first.split('/')so you will end up with an array of strings like

尝试使用first.split('/')这样你最终会得到一个字符串数组，比如

['http:' ,'',  'localhost:53830' ,  'Organisations' ,  '1216' ,  'View' ]

then find the one the is right after localhost:53830

然后找到 localhost:53830 之后的那个

Answer 4

You may need to add windowkeyword so you don't get error:Cannot read property 'pathname' of undefined

您可能需要添加window关键字，以免得到error:Cannot read property 'pathname' of undefined

var location = window.location.pathname.split('/')[1]