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// Send text to all users through the server
function sendText() {
  // Construct a msg object containing the data the server needs to process the message from the chat client.
  var msg = {
    type: "message",
    text: document.getElementById("text").value,
    id:   clientID,
    date: Date.now()
  };

  // Send the msg object as a JSON-formatted string.
  exampleSocket.send(JSON.stringify(msg));
  
  // Blank the text input element, ready to receive the next line of text from the user.
  document.getElementById("text").value = "";
}