


Prototype vs. Built-in DOM Methods: Which is Best for Creating DOM Elements from HTML Strings?
Generating DOM Elements from HTML Strings: Prototype vs. Built-in DOM Methods
When tasked with creating a DOM element from an HTML string, developers have two primary options: utilizing Prototype or built-in DOM methods. This article explores both approaches, providing a comprehensive guide for creating DOM elements in older browsers and Node.js/jsdom.
DOM Methods
For older browsers and Node.js/jsdom environments that do not support elements, a common method is to use createElement and innerHTML:
function createElementFromHTML(htmlString) { var div = document.createElement('div'); div.innerHTML = htmlString.trim(); return div.firstChild; }
This method, however, has limitations, as it cannot create elements that cannot be children of a
Prototype
For greater flexibility, Prototype provides a built-in feature in its update() method that enables the creation of DOM elements from HTML strings. This method seamlessly generates elements based on the specified HTML, making it a powerful tool for dynamic DOM manipulation.
Recommendations
When using a library like Prototype or jQuery, it is recommended to adhere to their approved methods for creating elements from HTML strings instead of relying on DOM methods:
- Prototype: update() method
- jQuery: jQuery(html) and jQuery.parseHTML methods
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