Creating Elements with createElement() The createElement() method allows us to create new HTML elements dynamically. This method takes the tag name of the element we want to create as a parameter. We can then assign attributes, properties, and content to the newly created element before appending it to the DOM.
Modifying Element Attributes and Properties
value, and others to control the content and behavior of the element.
Appending Elements to the DOM
To make our dynamically created elements visible on the webpage, we need to append them to the Document Object Model (DOM). The DOM provides various methods to insert elements into the document, such as appendChild(), insertBefore(), and insertAdjacentHTML(). These methods allow us to place elements at desired locations within existing elements or container elements.
Event Handling for Dynamic Elements
Generating Dynamic Content with Templates
Fetching Data and Rendering Dynamic Elements
When creating dynamic HTML tags, it’s essential to be mindful of security vulnerabilities, such as cross-site scripting (XSS) attacks. To mitigate these risks, it’s crucial to sanitize user inputs and ensure that dynamically generated content is properly escaped or sanitized before injecting it into the HTML.
// Create a new div element const newDiv = document.createElement('div'); // Set attributes and properties of the element newDiv.id = 'dynamic-div'; newDiv.className = 'dynamic-class'; newDiv.textContent = 'Dynamic Content'; // Append the element to an existing container const container = document.getElementById('container'); container.appendChild(newDiv);
In the above snippet, we use the createElement() method to create a new <div> element. We then set attributes such as
id and className to customize the element’s properties. Finally, we assign the desired content to the textContent property. Lastly, we select an existing container element (identified by its ID) and use the appendChild() method to append our dynamically created <div> element as a child within the container. Remember to ensure that the target container element (in this case, with the ID ‘container’) already exists in the HTML document for successful appending.