(Undated)  --  Beaverton-based Nike is reporting strong growth and sales and quarterly earnings.  The world's biggest athletic shoe and sportswear company announced yesterday that it saw double-digit growth in shoe and clothing sales, digital sales, and profit over 2017.  Nike shares are up about 36-percent this year.  The most recent quarter shows Nike turning back pressure from rival Adidas which gained popularity at Nike's expense a year ago.  Sales were up six-percent in North America, Nike's biggest market.