JavaScript Event Listener [Part -1]

JavaScript event listeners enable dynamic interaction with web elements, allowing developers to define specific actions when events like clicks, focus, or hover occur. For example, by selecting a button using querySelector and adding an event listener with addEventListener, functions can be triggered on a button click to perform tasks like logging messages, toggling text, or changing styles. Event listeners support various types of actions, including toggling classes or dynamically modifying inner text and HTML.

Class manipulation using methods like classList.add, classList.remove, and classList.toggle allows developers to change an element’s appearance or behavior based on user interaction. For instance, toggling a button’s color or updating text dynamically enhances user experience. Additionally, by modifying innerText or innerHTML, developers can insert or replace content within HTML elements, creating dynamic and interactive web pages. These techniques form the foundation for building responsive and engaging interfaces.

For more detail, please go through - JavaScript addEventListener() with Examples