ES6 – counting elements in an Array

const electionVotes = [
'Harry', 'Rick', 'Ben', 'Ben', 'Harry', 'Ashley',
'Connor', 'Rick', 'Ashley', 'Rick', 'Albert', 'Ben',
'Michael', 'Rick', 'Albert', 'Karen', 'Harry',
'Karen', 'Donna', 'Ashley', 'Albert', 'Harry',
'Dane', 'Dane', 'Rick', 'Donna', 'Mortimer',
];
const tallyVotes = (votes) => votes.reduce((acc, name) => ({
...acc,
[name]: acc[name] ? acc[name] + 1 : 1,
}), {});
console.log(tallyVotes(electionVotes));

{ Harry: 4,
Rick: 5,
Ben: 3,
Ashley: 3,
Connor: 1,
Albert: 3,
Michael: 1,
Karen: 2,
Donna: 2,
Dane: 2,
Mortimer: 1 }