Question

我有一个URL，需要从中读取值。我需要从URL中删除该步骤。我想写正则表达式来做到这一点

假设我得到window.location.href，就会得到以下结果

https://mypage/route/step-1/more-route/
https://mypage/route/step-5/more-route/

我想使用正则表达式一步。做到这一点的最佳方法是什么？

谢谢

Answer 1

您可以使用replace替换step号以外的所有内容：

.+\/step-(\d+)\/.+

const url1 = 'https://mypage/route/step-1/more-route/'
const url2 = 'https://mypage/route/step-5/more-route/'
const url3 = 'https://mypage/route/step-13/more-route/'

const step = (url) => url.replace(/.+\/step-(\d+)\/.+/, '$1')

console.log(step(url1))
console.log(step(url2))
console.log(step(url3))

Answer 2

您可以使用此正则表达式

\/step-(\d+)

\/-匹配/
step--匹配单词step-
(\d+)-匹配一个或多个数字（捕获的组）

let urls = ['https://mypage/route/step-1/more-route/'
,'https://mypage/route/step-5/more-route/']

let getStep = (url) => {
  let match = url.match(/\/step-(\d+)/i)
  return match && match[1]
}

urls.forEach(url=> console.log(getStep(url)))

Answer 3

将其拆分，然后使用索引。

let address = window.location.href; let addressArray= address.split('/') console.log(addressArray[3])

如何从网址中获取某些单词后的数字

3 个答案: