pass test two bestPractices
pass test three bestPractices
pass all tests  bestPractices
pass test 1 arrays
pass test 2 arrays
pass test on duplicates in arrays
pass test square in arrays
pass last test in array; refactor first solution to slightly more clever one :)
pass test 1 in functions. Alert!  questionable solution
pass test 1 in functions. Alert!  questionable solution
pass test 1 in functions. Alert!  questionable solution
pass test 4 in arrays
pass all tests logical operators
begin test 1 for count
pass test 2 functions thanks to Patrick.
refactor calling functions safely
pass 1st test regex
pass test 2 regex
pass test 3 regex
add Taaha answer for duplicates in arrays