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Handling events in JavaScript is crucial for creating interactive assignments. Events are user actions like clicks, keypresses, or mouse movements, which can be managed using event listeners. The addEventListener method allows developers to attach functions to specific events, enhancing user interaction. For example, document.getElementById("btn").addEventListener("click", function() { alert("Button Clicked!"); }); triggers an alert when a button is clicked. JavaScript also supports event delegation, preventing excessive event listeners by handling events at a parent level. Understanding event propagation (bubbling and capturing) helps in managing complex interactions efficiently. For expert guidance, seek JavaScript Programming Assignment Help at BookMyEssay today!