JavaScript Taskbook Level 10.2

Given a table. When you click on a cell, it is activated by some color. Make it so that the cells around the activated one are not activated.

Given a table. Make it so that every second a random cell of the table is activated. One cell cannot be active twice in a row.

This is a textarea. As you know, you can change its size by dragging its corner. Make it so that you can change the size of this textarea, and then refresh the page - and the changes should not be lost.

Given an input and a button. Clicking on the button displays a list of ul all excess numbers from the interval specified by the input values.

Given a square HTML table of arbitrary size. By clicking the button, fill half of the table as follows: