JavaScript 'this' and jQuery $(this)

• In JavaScript, variables have a scope and objects have context.
• A local variable called this exists in a function.
• It is scoped to the function, but if none is specified in the context of the owner object, that object is a window.
• In jQuery, we write this as a jQuery object, $(this).
• Note that there are no quotes since this is a variable.
• In jQuery, we use the .each() method to access the clicked li tags.
• The keyword this is also used in event handlers to denote a DOM element that triggered an event.

Test your knowledge of JavaScript 'this' keyword and its usage with jQuery $(this) object. The quiz covers the scope of variables, context of objects, and the usage of 'this' in event handlers and jQuery methods like .each().