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JavaScript - replace existing HTML element

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Created by:
ArcadeParade
276

In this article, we would like to show you how to replace existing HTML element using replaceChild() method in JavaScript.

Quick solution:

// get parent and child element by id
var parent = document.querySelector("#parent-id");
var child = document.querySelector("#child-id");

// replace child element with newElement
parent.replaceChild(newElement, child);

 

Practical example

In this example, we will replace child-2 element with a new paragraph element.

// ONLINE-RUNNER:browser;

<!doctype html>
<html>
  <body>
    <div id="parent">
      <p id="child-1">This is a paragraph 1.</p>
      <p id="child-2">This is a paragraph 2.</p>
    </div>
    <script>
      var parent = document.querySelector("#parent");
      var child = document.querySelector("#child-2");

      var paragraph = document.createElement("p");
      paragraph.innerText = 'This is new paragraph.';

      parent.replaceChild(paragraph, child);
    </script>
  </body>
</html>

JavaScript - DOM Node - problems & solutions

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