JavaScript Taskbook Level 7.10

Задание 1

Write a program that will generate the following string:

javascript'-x-xx-xxx-xx-x-'

Задание 2

Write a program that will generate the following string:

javascript'11 12 13 21 22 23 31 32 33'

Задание 3

Divs with product names and prices are given. A paragraph is also given. Make it so that multiple products can be selected by clicking and their total cost would be written in the paragraph.

Задание 4

A rectangular table with an odd number of rows and columns is given. A button is given. By clicking on the button, highlight the central cell with some color.