end
# Replace all occurences of a pattern with a string
#
# assert "hlelo".replace("le", "el") == "hello"
# assert "hello".replace('l', "") == "heo"
end
# Replace all occurences of a pattern with a string
#
# assert "hlelo".replace("le", "el") == "hello"
# assert "hello".replace('l', "") == "heo"