Johnsoct
4/5/2018 - 3:27 PM
Return array with one updated index
Using ES6's spread operator, this is an easy way to update a single index within an array and return the "new" array.
return [
...state.slice(0, index),
{
...state[index], likes: state[index].likes + 1
},
...state.slice(index + 1),
]