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Questions and Answers
What does the keyword this denote in event handlers?
What does the keyword this denote in event handlers?
- A jQuery object
- A DOM element (correct)
- A function
- A window
In jQuery, what do we write for the keyword this?
In jQuery, what do we write for the keyword this?
- $(this (correct)
- this
- "this"
- #this
What is the purpose of the .each() method in jQuery?
What is the purpose of the .each() method in jQuery?
- To create a local variable
- To access the clicked li tags (correct)
- To access the window object
- To access a DOM element
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Study Notes
- 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.
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