Javascript 正则表达式在 URL 中的斜杠后获取第一个单词
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Regex to get first word after slash in URL
提问by dom
I need to get the first word after slash in a url in javascript, I assume using a regex would be ideal.
我需要在 javascript 中的 url 中获取斜杠后的第一个单词，我认为使用正则表达式是理想的。
Here's an idea of what the URLs can possibly look like :
以下是 URL 可能是什么样子的想法：
- http://mysite.com/section/
- http://mysite.com/section/subsection/
- http://mysite.com/section-with-dashes/
- http://mysite.com/section_with_underscores/
- http://mysite.com/部分/
- http://mysite.com/部分/subsection/
- http://mysite.com/ section-with-dashes/
- http://mysite.com/ section_with_underscores/
In bold is what I need the regex to match for each scenario, so basically only the first portion after the slash, no matter how many further slashes there are.
粗体是我需要正则表达式来匹配每个场景的内容，所以基本上只有斜线后面的第一部分，不管有多少进一步的斜线。
I'm at a complete loss here, appreciate the help.
我在这里完全不知所措，感谢您的帮助。
回答by Brandon McKinney
JavaScript with RegEx. This will match anything after the first / until we encounter another /.
带有正则表达式的 JavaScript。这将匹配第一个 / 之后的任何内容，直到我们遇到另一个 /。
window.location.pathname.replace(/^\/([^\/]*).*$/, '');
回答by Alex Emilov
Non-regex.
非正则表达式。
var link = document.location.href.split('/');
alert(link[3]);
回答by Flavien Volken
Exploding an url in javascript can be done using the official rfc2396 regex:
可以使用官方的rfc2396 正则表达式在 javascript 中分解 url ：
var url = "http://www.domain.com/path/to/something?query#fragment";
var exp = url.split(/^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/);
This will gives you:
这会给你：
["", "http:", "http", "//www.domain.com", "www.domain.com", "/path/to/something", "?query", "query", "#fragment", "fragment", ""]
Where you can, in your case, easily retrieve you path with:
在您的情况下，您可以通过以下方式轻松检索路径：
var firstPortion = exp[5].split("/")[1]
回答by hsz
Try with:
尝试：
var url = 'http://mysite.com/section-with-dashes/';
var section = url.match(/^http[s]?:\/\/.*?\/([a-zA-Z-_]+).*$/)[0];
回答by Fareesh Vijayarangam
My regex is pretty bad, so I will improvise with a less efficient solution :P
我的正则表达式很糟糕，所以我会即兴创作一个效率较低的解决方案：P
// The first part is to ensure you can handle both URLs with the http:// and those without
x = window.location.href.split("http:\/\/")
x = x[x.length-1];
x = x.split("\/")[1]; //Result is in x
回答by Ady Ngom
Here is the quick way to get that in javascript
这是在javascript中获得它的快速方法
var urlPath = window.location.pathname.split("/");
if (urlPath.length > 1) {
var first_part = urlPath[1];
alert(first_part);
}
回答by Marc B
$url = 'http://mysite.com/section/subsection';
$path = parse_url($url, PHP_URL_PATH);
$components = explode('/', $path);
$first_part = $components[0];
