How can I create a function that will remove a specific item from an array/ul? [closed]

I’m making a mini program to allow me to create a list of items (e.g Coffee, milk, eggs) by typing the item into a bar, pressing a button and then adding the item to an unordered list.

I have managed to create a function that adds an item to the list, but now I want to create a function that removes a specific item that has been added to the list.

Anyone have any ideas? Much appreciated!
Thanks