In application I pass data: id, listId and inputValue - as a string:
const string = '${id}|${listId}|${inputValue}'
and then I need to create array with length 3 using split:

string.split("|")

Therefore, if user enter '|' inside the input - app crashes. Is there any symbol that is impossible to write by user inside input and I can use as separator to get array with length 3?