3. Alternative Methods for Checking Input Focus in jQuery
   Understanding the Concept:Focus: When an input element is selected and ready to receive user input, it is said to have focus
4. Alternative Methods for Triggering Shared Functions from Multiple Events in jQuery
   Understanding the Concept:Event Handlers: In jQuery, event handlers are functions that are executed when a specific event occurs
5. Demystifying Mouse Events: How to Handle Left and Right Clicks with jQuery
   Mouse Events: In JavaScript, various events are triggered when interacting with the mouse. The two most relevant for this purpose are: