DOM Enlightenment: Exploring JavaScript and the Modern DOM by Lindley Cody
Author:Lindley, Cody [Lindley, Cody]
Language: eng
Format: azw3
Tags: COMPUTERS / Programming Languages / JavaScript
ISBN: 9781449342838
Publisher: O'Reilly Media
Published: 2013-02-08T05:00:00+00:00
7.4 Creating and Injecting Text Nodes
Text nodes are created automatically for us when a browser interprets an HTML document, and a corresponding DOM is built based on the contents of the document. After this automation, it’s also possible to programmatically create Text nodes using createTextNode(). In the following code, I create a text node and then inject that node into the live DOM tree.
Live code
<!DOCTYPE html> <html lang="en"> <body> <div></div> <script> var textNode = document.createTextNode('Hi'); document.querySelector('div').appendChild(textNode); console.log(document.querySelector('div').innerText); // logs Hi </script> </body> </html>
Keep in mind that we can also inject text nodes into programmatically created DOM structures. In the following code, I place a text node inside a <p> element before I inject it into the live DOM.
Live code
<!DOCTYPE html> <html lang="en"> <div></div> <body> <script> var elementNode = document.createElement('p'); var textNode = document.createTextNode('Hi'); elementNode.appendChild(textNode); document.querySelector('div').appendChild(elementNode); console.log(document.querySelector('div').innerHTML); //logs <div>Hi</div> </script> </body> </html>
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