Question

how can i use js to output the value of a childNode with an alert(); function or creating a new element. for example.. have this:

<ul id="main">
  <li>
   <h2>Alec</h2>
   <p>NX-01</p>
   <p>command: 2151</p>
  </li>
  <li>simple</li> 
  <li>William</li>
</ul>

<script>
var element = document.getElementById("main");
var values = element.childNodes[1].nodeValue; // the text simple this i want to output
alert('the value is:' + values);
</script>

Answer 1

You can use its innerText property:

var element = document.getElementById("main");
var values = element.childNodes[1].innerText;
alert('the value is:' + values);
// Alec NX-01 command: 2151

The above should print all the text contents of the first <li> element (Alec NX-01 command: 2151)

To further refine it and retrieve the value Alec for example, use another .childNodes[1]

var element = document.getElementById("main");
var values = element.childNodes[1].childNodes[1].innerText;
alert('the value is:' + values);

// Alec