Javascript Regex替换url中的子目录

Question

我正在尝试匹配特定目录之后的 URL 中的子目录:

然后将目录附加到匹配的字符串。

/applications/app1 应该是 /applications/app1/beta

/applications/app2/ 应该是 /applications/app2/beta/

/applications/app2/settings 应该是 /applications/app2/beta/settings

/applications/app3?q=word 应该是 /applications/app3/beta?q=word

我是这样写的:

path = path.replace(/(\/applications\/(.*)(\/|\s|\?))/, '$1/beta');

但如果 app-name 在字符串的末尾则不起作用。

注意:我不知道应用名称我只知道它跟在/applications/

Answer 1

path.replace(/(\/applications\/[^/?]+)/g,'$1/beta');

经过深思熟虑，我更喜欢下面的:

path.replace(/(\/applications\/[^/?]+)($|\/|\?)(?!beta)/g,'$1/beta$2');

"/applications/app1/beta"      -> "/applications/app1/beta"
"/applications/app1"           -> "/applications/app1/beta"
"/applications/app1/settings"  -> "/applications/app1/beta/settings"
"/applications/app1?q=123"     -> "/applications/app1/beta?q=123"

匹配时会忽略/applications/beta