test => no whitespace
test => leading whitespace
test => can't drop whitespace in center
test => tailing whitespace
test => drop leading and tailing whitespace
Merge branch 'trim_a_string' into master
add test into all-tests.html
Merge branch 'origin/master' into master
test => create function
Merge branch 'closures_and_scopes' into master
add test into all-tests.html
refactoring => using best practice from codewars
Merge branch 'closures_and_scopes'