string prefix?

(string-prefix? pattern str)

string-prefix? returns true if the str begins with the pattern and false otherwise. This is case sensitive.

Parameter	Description
pattern	The prefix string to look for at the start of str
str	Input string

Example

Example 1: Checking if a string begins with a prefix.

> (define mystr "var_x")
> (string-prefix? "var" mystr)
#t