如何使正则表达式不区分大小写？

Question

I tried these solutions but it did not work.我尝试了这些解决方案，但没有奏效。

(/Y/g, "ʏ", "i"); (/Y/g, "ʏ", "i");

(/Y/g, "ʏ"(?i)); (/Y/g, "ʏ"(?i));

I want to convert Y,y to ʏ using regex.我想使用正则表达式将 Y,y 转换为 ʏ。 Thank you.谢谢你。

Answer 1

You can just use the flag i to denote case i nsensitivity您可以只使用标志i来表示不区分大小写

new RegExp(/Y/ig);

Or a less intuitive alternative或者一个不太直观的选择

new RegExp(/Y|y/g);