String in F# is an immutable sequence of Unicode characters. F# allows us to perform manipulations on string. Some basic operations are like -concatenation, fetching character, substring etc.
F# string is an alias for System.String in the .Net framework.
F# String Example
F# ASCII String Example
97 98 99
You can access individual character of a string by using array like syntax.
F# Accessing character using array like syntax