I need help with this assignment in Java Script but using jQuery.

$//$Create a variable and assign an empty array to it$.$

$//$Set the focus to the DOM element that has an ID of itemID

$//$Assign a function named addToList to the click event of the element with ID of addBtn.

$//$Assign a function named removeFromList to the click event of the element with ID of removeBtn.

$//$Assign an anonymous function to the click event of the element with ID of clearListBtn.

$/*$

$$ The anonymous function should do the following:

$$ Clear the html of the element with ID of listID.

$$ Reset the array variable to the empty array.

$$ Clear the value of the input element with ID of itemID.

$$ Get the same element to receive the focus.

$*/$

$$

$$ function addToList$($e$)$

$\{$

$$ e$.$preventDefault$()$;

$//$Declare a variable and assign it the value inside the form input element with ID of itemID.

$//$Check if the value of the variable is null or the empty string.

$//$If it is$,$ just return from the function. That's all.

$$

$//$Declare a variable and assign it the position of the variable in the array.

$$

$//$Check the position value obtained from the last statement to see if it is equal to $-1.$

$//$If it IS NOT equal to $-1,$ do the following:

$/*$

$$ Call alert with a message stating that the item is already on the list.

$$ Clear the value of the input element with ID of itemID.

$$ Get the same element to receive the focus.

$$ Return from this function.

$*/$

$$

$//$Declare a variable and assing it a new li element.

$//$Set the text of the new li element to the value of the variable that has the data from the form. $($You already declared this variable at the top of the function.$)$

$$

$//$Append the new li element to the element with ID of listID.

$$

$//$Add the data from the form that you got at the top of this function to the array.

$$

$//$Clear the value of the input element with ID of itemID.

$//$Get the same element to receive the focus.

$\}$

$$

$$ function removeFromList$()$

$\{$

$//$Declare a variable and assign it the value inside the form input element with ID of itemID.

$//$Check if the value of the variable is null or the empty string.

$//$If it is$,$ just return from the function. That's all.

$$

$//$Declare a variable and assign it the position of the variable in the array.

$$

$//$Check the position value obtained from the last statement to see if it is equal to $-1.$

$//$If it IS equal to $-1,$ do the following:

$/*$

$$ Call alert with a message stating that the item is NOT on the list. Include the item that was being looked for in the message.

$$ Clear the value of the input element with ID of itemID.

$$ Get the same element to receive the focus.

$$ Return from this function.

$*/$

$$

$//$Use the position of the element to remove it from the array.

$//$Clear the HTML of the element with ID of listID.

$//$Start a loop that will go through all of the items in the array.

$//$Inside the loop do the following:

$/*$

$$ Create a new li element and assign it to a new variable.

$$ Add the current value from the array to the text of the li element just created.

$$ Append the li element to the element with ID of listID.

$*/$

$$

$//$Clear the value of the input element with ID of itemID.

$//$Get the same element to receive the focus.

$\}$

$\})$;