用gsub将红宝石字符串替换为多个字符串的条件

Question

I have as string as "pas" and "with_pas". I want to replace it with blank string. Now I am doing as follows

string.gsub("pas","").gsub("with_pas","") 

In some scenario i get the string as "pas" and in some other with "with_pas".

Is there a better way to do this?

Answer 1

您可以使用当前的方法，但是需要更改顺序，否则将无法按预期工作：

string.gsub("with_pas","").gsub("pas","")

Answer 2

那使用正则表达式呢？

string.gsub(/(with_)?pas/, "")

Answer 3

str.gsub(/pas|with_pas/, '').squeeze

这将删除单词，并且squeeze将删除gsub添加的额外空间。