jQuery .replaceAll()

The .replaceAll() method is similar to .replaceWith(), but with the source and target reversed. Consider this DOM structure:

<div class="container">
 <div class="inner first">Hello</div>
 <div class="inner second">And</div>
 <div class="inner third">Goodbye</div>
</div>

We can create an element, then replace other elements with it:

$( "<h2>New heading</h2>" ).replaceAll( ".inner" );

This causes all of them to be replaced:

<div class="container">
 <h2>New heading</h2>
 <h2>New heading</h2>
 <h2>New heading</h2>
</div>

Or, we could select an element to use as the replacement:

$( ".first" ).replaceAll( ".third" );

This results in the DOM structure:

<div class="container">
 <div class="inner second">And</div>
 <div class="inner first">Hello</div>
</div>

From this example, we can see that the selected element replaces the target by being moved from its old location, not by being cloned.