I have such array of objects:

[{id: 1, name: 'Apple', category: 'Fruit'}
{id: 2, name: 'Melon', category: 'Fruit'}
{id: 3, name: 'iPhone', category: 'Phone'}
{id: 4, name: 'Samsung Galaxy Note 8', category: 'Phone'}
{id: 5, name: 'Playstation 5', category: 'Entertainment'}]

and what I wanted to achieve is to combine product names by category and show them like:

Fruit
  Apple
  Melon
Phone
  iPhone
  Samsung Galaxy Note 8
Entertainment
  Playstation 5