如何使用JavaScript检查URL中的#hash？ [英] How can you check for a #hash in a URL using JavaScript?

问题描述

我有一些jQuery JavaScript代码，只有在URL中有哈希（＃）锚链接时才能运行。如何使用JavaScript检查此角色？我需要一个简单的全能测试来检测这些网址：

I have some jQuery JavaScript code that I want to run only when there is a hash (#) anchor link in a URL. How can you check for this character using JavaScript? I need a simple catch-all test that would detect URLs like these:

• example.com/page.html#anchor


• example.com/page.html#anotheranchor

基本上是这样的：

if (thereIsAHashInTheUrl) {        
    do this;
} else {
    do this;
}

如果有人能指出我正确的方向，那将非常感激。

If anyone could point me in the right direction, that would be much appreciated.

推荐答案

简单：

if(window.location.hash) {
  // Fragment exists
} else {
  // Fragment doesn't exist
}

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