(function () { const client = { id: "", io: io() } client.io.on('id', id => client.id = id) const player1Grid = document.getElementById('player1-grid') const player2Grid = document.getElementById('player2-grid') for (let i = 0; i < 100; i++) { const div1 = document.createElement('div') div1.classList.add('cell') player1Grid.appendChild(div1) const div2 = document.createElement('div') div2.classList.add('cell') player2Grid.appendChild(div2) } })()