var first = "abc-abcdef-abcd";
var second = "abc";

say first.begins_with(second);      #=> true
say first.contains(second);         #=> true
say first.ends_with(second);        #=> false

# Get and print the location of the match
say first.index(second);            #=> 0

# Find multiple occurrences of a string
var pos = -1;
while (pos = first.index(second, pos+1) != -1) {
    say "Match at pos: #{pos}";
}