Examine the code

The given todo.js file implements three functions:

ready callback function $-$ Registers addBtnClick$()$ as the click callback function for the Add button.

addBtnClick$()-$ Extracts the text typed into the text box and calls addItem$()$ to add the new item.

addItem$()-$ Creates a list item for the newly entered item that contains the item text, up$,$ down, and done buttons. Clicking the up and down buttons calls moveItem$(),$ and clicking the done button calls removeItem$().$

Modifications

Make the following modifications using jQuery:

Modify moveItem$()$ to move the