- (string-prefix? string₁ string₂ [start₁ end₁ start₂ end₂]) → booleanprocedure
- (string-suffix? string₁ string₂ [start₁ end₁ start₂ end₂]) → booleanprocedure
Is string₁ a prefix/suffix of string₂?
The optional start/end indexes restrict the comparison to the indicated substrings of string₁ and string₂.