Remove a string from another string

I have two strings like 'bio-inspired' and 'bioinspired'. I want to essentially subtract one string from another and get '-' in the end. How can I delete all letters appearing in one string from another string? The erase function doesn't work for this case.

Answer 1

[KSSV]

 str1 = 'bio-inspired' ;
 str2 = 'bioinspired' ; 
 str=setdiff(str1,str2)

str = '-'

[Tejas]

Great! That works for me.

[Tejas]

I have a problem though. This doesn't work for repeated letters. setdiff('sam','sams') gives me an empty array. Is there a way around that?

[KSSV]

Huumh....because s is present once in the string. Need to check other ways.

[Tejas]

I guess erase would work for that case. Both wouldn't work for words like 's-ams' and 'sam' to get '-s'. I'll figure something out for those cases.

Answer 2

[Ezma Nasr]

str='bio-inspired';

newStr = erase(str,"-")