====== Is javascript works ? ====== Should be write 'OK' : ====== toLocaleDateString() ====== ===== Workaround ===== ====== Object copy ====== ===== Object.assign() - only scalar properties ===== Should be write 1,2 : ===== Object.assign() - complex properties ===== Should be write 1,2 : ===== Object.create() - complex properties ===== Should be write 1,2 :