StartsWithRegexp
Checks if a string starts with a search regular expression
StartsWithRegexp("123456", "[1-3]") → true
StartsWithRegexp("Australia", "[a-c]") → falseInputs
StartWithRegexp(string, searchRegexp, [isCaseSensitive])
string- A text value to search insearchRegexp- Regular expression to search for[isCaseSensitive]- [optional:trueby default**]** - Setfalseif search should be case insensitive