Javascript 如何改进这个正则表达式

我使用正则表达式在div的innerHTML中查找

部分

      var b = this.innerHTML.match(/href="([^\'\"]+)/g);
      var c = b[0].split('#')[1];
      window.location.assign('#'+c);

并希望去掉第二行.split函数。有办法做到这一点吗？理想情况下，我也希望在div之前保留hashtag：

HREF始终是这样的（只有数字可能会更改）：

您可以使用：

var b = this.innerHTML.match(/href=(['"])(.+?)\1/);
window.location.assign( b[2] ); // #div46

• 删除

  g

  标志以获取结果数组中的所有匹配组

您可以使用：

var b = this.innerHTML.match(/href=(['"])(.+?)\1/);
window.location.assign( b[2] ); // #div46

• 删除

  g

  标志以获取结果数组中的所有匹配组

---

不需要正则表达式：

// you can extract all fragments of an url like this:

var linkElement = document.createElement('a');
linkElement.href = "http://example.com:3000/pathname/?search=test#hash";

linkElement.protocol; // => "http:"
linkElement.hostname; // => "example.com"
linkElement.port;     // => "3000"
linkElement.pathname; // => "/pathname/"
linkElement.search;   // => "?search=test"
linkElement.hash;     // => "#hash"
linkElement.host;     // => "example.com:3000"

// in case you already have a link, you'll don't have to create it - just 
// use the element and ask for hash - and you are done. 

---

您不需要正则表达式：

// you can extract all fragments of an url like this:

var linkElement = document.createElement('a');
linkElement.href = "http://example.com:3000/pathname/?search=test#hash";

linkElement.protocol; // => "http:"
linkElement.hostname; // => "example.com"
linkElement.port;     // => "3000"
linkElement.pathname; // => "/pathname/"
linkElement.search;   // => "?search=test"
linkElement.hash;     // => "#hash"
linkElement.host;     // => "example.com:3000"

// in case you already have a link, you'll don't have to create it - just 
// use the element and ask for hash - and you are done. 

---

@阿努巴瓦这给了我undefined@vks我不明白@比芬：我还能怎样得到结果呢？@anubhava这给了我答案undefined@vks我不明白@比芬：我怎样才能得到结果呢？