startsWith, endsWith, iStartsWith, iEndsWith, getBetween
This module adds 5 prototypes to the javascript String object...
``
require("@pforth/strfuncs");
var str="adfsasdfasf";
str.startsWith("a");
str.endsWith("aasdf");
str.iStartsWith("a");
str.iEndsWith("a");
str.getBetween("fs", "df");
``