take value from a JS variable and put in an input value

Question

I am wanting to take a value of a javascript variable and put inside a input value to send via get.

My JS is like this:

$(window).load(function() {
  var count = 10;

  $('a[name=alex]').click(function() {
    document.getElementById("resultado").innerHTML = "" + count + "";
    count += 10;
  });

});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="contador">
  <div class="cont_sub0">
    <h4>Pontuação</h4>
  </div>
  <div class="cont_sub1"><span id="resultado">000</span>
  </div>

  <input type="text" value="resultado" id="resultado">

</div>

I’m not able to put the result in value, this showing perfect, but, no input undesirable.

Answer 1

The estate innerHTML serves to write or return the contents of an HTML element, in case the attribute you want to change is the value

document.getElementById("resultado").value = count;

See working

$(window).load(function() {
  var count = 10;

  $('a[name=alex]').click(function() {
    document.getElementById("span").innerHTML = "" + count + "";
    document.getElementById("input").value = count;
    count += 10;
  });

});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="contador">
  <div class="cont_sub0">
    <h4>Pontuação</h4>
  </div>
  <div class="cont_sub1"><span id="span" name="resultado">000</span>
  </div>

  <input type="text" value="resultado" id="input" name="resultado">
  <a name="alex" href="#">teste</a>
</div>

---

Other addenda:

• The attribute id is linked to only one item on each page html;
• If you want to work in the same way with elements of the same type, you should use document.getElementsByName("name_do_elemento") or document.getElementsByClassName("name_da_class") which are more generic means of picking up multiple elements having the same name or class, respectively;
• You should also take into account that each element works in a way, inputs the text type changes the value to obtain the expected result, not the content, already elements of the type div, or span, changes the content, for example.