JavaScript 中不区分大小写的正则表达式 [英] Case insensitive regex in JavaScript

问题描述

我想使用 JavaScript 从我的 URL 中提取查询字符串，并且我想对查询字符串名称进行不区分大小写的比较.这是我正在做的:

I want to extract a query string from my URL using JavaScript, and I want to do a case insensitive comparison for the query string name. Here is what I am doing:

var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);
if (!results) { return 0; }
return results[1] || 0;

但是上面的代码做了区分大小写的搜索.我试过 //i 但它没有帮助.知道如何实现吗?

But the above code does a case sensitive search. I tried /<regex>/i but it did not help. Any idea how can that be achieved?

推荐答案

您可以添加 'i' 修饰符，表示忽略大小写"

You can add 'i' modifier that means "ignore case"

var results = new RegExp('[\?&]' + name + '=([^&#]*)', 'i').exec(window.location.href);

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