RealWorld.js

Find an element in the list of user objects based on Id

const list = [
  {
    Id: 1,
    Name: “A”
  },
  {
    Id: 2,
    Name: “B”
  },
  {
    Id: 3,
    Name: “C”
  },
]

list.findById(2)

Output = {
	Id: 2,
  Name: “B”
}


Flatten an Array
		
const list = [1,2,3,4, [5,6,[7,8]], 9,10]
list.flatten
Output = [1,2,3,4,5,6,7,8,9,10]