Followers

function solve(input){
    let followers = {};
    persons = 0;

    for(let i = 0; i < input.length; i++){
        let [ command, username, count] = input[i].split(': ');
        // console.log(command);
       switch(command){
        case "New follower":
            if(!followers.hasOwnProperty(username)){
                followers[username] = [];                                                 persons++;
            }
            break;
        case "Like":
            if(!followers.hasOwnProperty(username)){
                followers[username] = [];
                followers[username].push(count);
                persons++;
            } else {
                followers[username] += count;

            }
            break;
        case "Comment":
            if(!followers.hasOwnProperty(username)){
                followers[username] = [];               ;
                followers[username] = 1;
                persons++;
            } else {
                followers[username]++;

            }
            break;
        case "Blocked":
            if(followers.hasOwnProperty(username)){
                delete followers[username];
                persons--;
            } else {
                console.log(`${username} doesn't exist.`);
            }
            break;
        case "Log out":
            break;
       }
    }
    let sorted = Object.entries(followers).sort((a, b) => b[1] - a[1]
    || a[0].localeCompare(b[0]));
    console.log(`${persons} followers`);
    for(let kvp of sorted){
        console.log(`${kvp[0]}: ${kvp[1]}`);
    }
}
solve([
    'New follower: gosho',
    'Like: gosho: 5',
    'Comment: gosho',
    'New follower: gosho',
    'New follower: tosho',
    'Comment: gosho',
    'Comment: tosho',
    'Comment: pesho',
    'Log out'
  ]
  );
  solve([
    'Like: A: 3',
    'Comment: A',
    'New follower: B',
    'Blocked: A',
    'Comment: B',
    'Like: C: 5',
    'Like: D: 5',
    'Log out']);