JSFiddle - React, Tailwind, and code Playground

HTML

<span id="rating_1">Мне нравится..</span><span id="ILikeIt">+0</span>

JavaScript

function MoronsHandler(idInput, idVote){
  var inputVote = document.getElementById(idInput);
  var voteVisibly = document.getElementById(idVote);
  var oneVote = 'yes';
  function handler(){
    if(oneVote == 'yes'){
      var count = voteVisibly.innerHTML.slice(1);
      count++;
      voteVisibly.innerHTML = '+'+count;
      oneVote = 'no';
    }else{
      alert('Вы уже голосовали, редиска!!')
    }
  }
  inputVote.addEventListener('click', handler);
}
MoronsHandler('rating_1', 'ILikeIt');