Javascript jquery如何检查url是否包含单词？
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jquery how to check if url contains word?
提问by Beginner
I want to be able to check if url contains the word catalogue.
我希望能够检查 url 是否包含单词目录。
This is what i am trying...
这就是我正在尝试的...
$(document).ready(function () {
if (window.location.href.indexOf("catalogue"))
{
$("#trail").toggle();
}
});
The url of the site could be..
该网站的网址可能是..
http://site.co.uk/catalogue/
Or
或者
http://site.co.uk/catalogue/2/domestic-rainwater.html
etc.
等等。
But it doesn't work. Can somebody please point out where I'm going wrong?
但它不起作用。有人可以指出我哪里出错了吗？
回答by Simon
Try:
尝试：
if (window.location.href.indexOf("catalogue") > -1) { // etc
indexOf doesn't return true/false, it returns the location of the search string in the string; or -1 if not found.
indexOf 不返回真/假，它返回搜索字符串在字符串中的位置；如果未找到，则为 -1。
回答by Martin James
Seeing as the OP was already looking for a boolean result, an alternative solution could be:
鉴于 OP 已经在寻找布尔结果，替代解决方案可能是：
if (~window.location.href.indexOf("catalogue")) {
// do something
}
The tilde (~) is a bitwise NOT operator and does the following:
波浪号 ( ~) 是按位非运算符，执行以下操作：
~n == -(n+1)
~n == -(n+1)
In simple terms, the above formula converts -1 to 0, making it falsy, and anything else becomes a non-zero value making it truthy. So, you can treat the results of indexOfas boolean.
简单来说，上面的公式将 -1 转换为 0，使其为假，其他任何值都变为非零值使其为真。因此，您可以将结果indexOf视为布尔值。
回答by Ishan Shah
You can simply use the includes(). Kindly refer the following code.
您可以简单地使用includes()。请参考以下代码。
$(document).ready(function () {
if(window.location.href.includes('catalogue')) {
$("#trail").toggle();
}
});
