$(document).ready(function(){
  fix_spell = function(data) {
   data.forEach(function(elem) {
      $('#text_field').val(
        $('#text_field').val().replace(
          elem['word'], elem['s'][0] || elem['word']
        )
      );
    });

elem['word'], elem['s'][0] || elem['word']

$('#text_field').val().replace(
      elem.word, elem.s[0] || elem.word
    )

if (elem.s[0])
      $('#text_field').val().replace(elem.word, elem.s[0]);