像正则表达式一样将字符串转换为 javascript 中的 object

Question

I have the following variable

var characters = /[-()&]/

and i have a string like this

var characters_string = "/[-()&]/"

this string is result from array and join, because i need to add news variables, so, i need to convert characters_string to a object like characters because is not working with characters_string because when i use in this line

var filter_d = info.split(/[.,%]/)

and i use it like this

var filter_d = info.split(characters_string)

but i get error

thanks

Answer 1

You can use new RegExp ,but you need delete the "/" at the start and the end of the string

new RegExp(characters_string.slice(1, -1))