How to disable the ability to send empty messages on pressing enter?

Question

JavaScript

window.addEventListener ("keypress", function (e) {
      if (e.keyCode === 13 && input.value != ''){
              event.preventDefault();
              socket.emit('событие', input.value);
       	      input.value = '';
              return false;
     }
});

Here is my code, I can't cancel the transfer to the next line because of which it is sent by pressing enter. The first message is not sent, and then the transfer occurs and after that the message is sent, how to solve this problem? I would also like to add the ability to wrap to the next line via shift + enter

Answer 1

input.value.trim()