Extracts a character by 1-based index.
StringPart["string", n]
StringPart["string", {n1, n2, …}]
StringPart["string", m ;; n ;; s]
StringPart[{s1, s2, …}, spec]
StringPart["Hello", 2]
→ eStringPart["abcde", 1.5]
→
StringPart::pkspec1: The expression 1.5 cannot be used as a part specification.
StringPart[abcde, 1.5]StringPart["abcde", 10]
→
StringPart::partw: Part 10 of abcde does not exist.
StringPart[abcde, 10]StringPart["abcde", {1, x}]
→
StringPart::partw: Part {1, x} of abcde does not exist.
StringPart[abcde, {1, x}]