()
| 22 | const socket = io(); |
| 23 | let last; |
| 24 | function send () { |
| 25 | last = new Date(); |
| 26 | socket.emit('ping_from_client'); |
| 27 | $('transport').innerHTML = socket.io.engine.transport.name; |
| 28 | } |
| 29 | |
| 30 | socket.on('connect', () => { |
| 31 | if ($('chart').getContext) { |