Use With Arrays

Lenses are great for arrays too! (2 min. read)

What we just learned applies to arrays as well, but with one change. Instead of lensProp use lensIndex.

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import { lensIndex, view } from 'ramda';
const person = {
  firstName: 'Bobo',
  lastName: 'Flakes',
  friends: [{
    firstName: 'Clark',
    lastName: 'Kent'
  }, {
    firstName: 'Bruce',
    lastName: 'Wayne'
  }, {
    firstName: 'Barry',
    lastName: 'Allen'
  }]
};
const getThirdFriend = lensIndex(2);
const result = view(getThirdFriend, person.friends);
console.log({ result });