How can I change an element's text without changing its child elements?

Question

I\'d like to update element\'s text dynamically:

   **text to change**
   
       text t         


        
                      

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Answer 1

I think you're looking for .prependTo().

http://api.jquery.com/prependTo/

We can also select an element on the page and insert it into another:

$('h2').prependTo($('.container'));

If an element selected this way is inserted elsewhere, it will be moved into the target (not cloned):

<div class="container">  
  <h2>Greetings</h2>
  <div class="inner">Hello</div>
  <div class="inner">Goodbye</div> 
</div>

If there is more than one target element, however, cloned copies of the inserted element will be created for each target after the first.

Answer 2

$.fn.textPreserveChildren = function(text) {
  return this.each(function() {
    return $(this).contents().filter(function() {
      return this.nodeType == 3;
    }).first().replaceWith(text);
  })
}

setTimeout(function() {
  $('.target').textPreserveChildren('Modified');
}, 2000);

.blue {
  background: #77f;
}
.green {
  background: #7f7;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>

<div class="target blue">Outer text
  <div>Nested element</div>
</div>

<div class="target green">Another outer text
  <div>Another nested element</div>
</div>