minecraft 1.12 add mendind to sword command code example
Example: maxed diamond sword command
/give @p diamond_sword{Enchantments:[{id:sharpness,lvl:5},{id:knockback,lvl:2},{id:fire_aspect,lvl:2},{id:looting,lvl:3},{id:sweeping,lvl:3},{id:unbreaking,lvl:3},{id:mending,lvl:1}]} 1